Tournois : 21 | 3,164 parties | 9,862 vidéos | MAJ: 12/02/2026
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    ECO CODE

    • Non_classe (0)
    • SÉRIE A (582)
      • A00 1. xxxx (7)
        • A00 - 1. a3 (3)
        • A00 - 1. g3 e5 2. Nf3 Nc6 3. d4 e4 4. Ne5 Nce7 - Hungarian Opening: Reversed Alekhine (1)
        • A00 - 1. g3 Nf6 2. Bg2 d5 (1)
        • A00 - 1. Nc3 e5 2. Nf3 Nc6 3. d4 - Van Geet Opening: Napoleon Attack (1)
        • A00 - 1. Nh3 d5 2. g3 e5 - Amar (Paris) opening (1)
      • A01 - 1. b3 - Nimzo-Larsen Attack (15)
        • A01 - 1. b3 b6 2. - Nimzo-Larsen Attack: Symmetrical Variation (2)
        • A01 - 1. b3 c5 - Nimzo-Larsen Attack: English Variation (1)
        • A01 - 1. b3 d5 - Nimzo-Larsen Attack: Classical Variation (7)
          • A01 - 1. b3 d5 2. Bb2 - Nimzo-Larsen Attack: Classical Variation (7)
            • A01 - 1. b3 d5 2. Bb2 c5 - Nimzo-Larsen Attack: Classical Variation (1)
            • A01 - 1. b3 d5 2. Bb2 Nf6 - Nimzovich-Larsen attack (6)
        • A01 - 1. b3 e5 2. Bb2 Nc6 3. e3 - Nimzo-Larsen Attack: Modern Variation (2)
        • A01 - 1. b3 Nf6 2. - Nimzo-Larsen Attack: Indian Variation (3)
      • A02 - A03 1. f4 Bird's opening (1)
        • A02 - 1. f4 - Bird Opening (0)
        • A03 - 1. f4 d5 - Bird Opening: Dutch Variation (1)
          • A03 - 1. f4 d5 2. Nf3 Bg4 - Bird's opening (1)
      • A04 - A09 1. Nf3 Opening Reti (170)
        • A04 - 1. Nf3 - Zukertort Opening (7)
          • A04 - 1. Nf3 c5 - Zukertort Opening: Sicilian Invitation (3)
          • A04 - 1. Nf3 e6 - Zukertort Opening: Queen's Gambit Invitation (1)
          • A04 - 1. Nf3 f5 - Zukertort Opening: Dutch Variation (1)
          • A04 - 1. Nf3 g6 2. d4 Bg7 3. g3 (2)
        • A05 - 1. Nf3 Nf6 - Zukertort Opening (41)
          • A05 - 1. Nf3 Nf6 2. b3 - Zukertort Opening: Nimzo-Larsen Variation (12)
          • A05 - 1. Nf3 Nf6 2. e3 - Zukertort Opening: Quiet System (3)
            • A05 - 1. e3 Nf6 2. Nf3 b6 3. d4 Bb7 4. Bd3 e6 - Zukertort Opening: Quiet System (1)
            • A05 - 1. Nf3 Nf6 2. e3 c5 - Zukertort Opening: Quiet System (1)
            • A05 - 1. Nf3 Nf6 2. e3 g6 - Zukertort Opening: Quiet System (1)
          • A05 - 1. Nf3 Nf6 2. g3 b5 (4)
          • A05 - 1. Nf3 Nf6 2. g3 b6 (1)
          • A05 - 1. Nf3 Nf6 2. g3 c5 - Reti opening (6)
          • A05 - 1. Nf3 Nf6 2. g3 d5 - King's Indian Attack (5)
            • A05 - 1. Nf3 Nf6 2. g3 d5 3. Bg2 c5 - King's Indian Attack (4)
            • A05 - 1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 - King's Indian Attack (1)
          • A05 - 1. Nf3 Nf6 2. g3 g6 - King's Indian Attack: Symmetrical Defense (10)
        • A06 - 1. Nf3 d5 - Zukertort Opening (48)
          • A06 - 1. Nf3 d5 2. b3 - Nimzo-Larsen Attack (27)
            • A06 - 1. Nf3 d5 2. b3 Bf5 3. - Nimzo-Larsen Attack: Classical Variation (9)
            • A06 - 1. Nf3 d5 2. b3 Bg4 3. - Nimzo-Larsen Attack: Classical Variation (1)
            • A06 - 1. Nf3 d5 2. b3 c5 3. e3 (9)
            • A06 - 1. Nf3 d5 2. b3 c5 3. e4 - Nimzo-Larsen Attack: Norfolk Gambit (0)
            • A06 - 1. Nf3 d5 2. b3 Nf6 3. - Nimzo-Larsen Attack: Classical Variation (8)
          • A06 - 1. Nf3 d5 2. e3 - Zukertort Opening (21)
            • A06 - 1. Nf3 d5 2. e3 Nf6 - Reti opening (21)
              • A06 - 1. Nf3 d5 2. e3 Nf6 3. b3 Bf5 - Reti opening (3)
              • A06 - 1. Nf3 d5 2. e3 Nf6 3. b3 e6 - Reti opening (2)
              • A06 - 1. Nf3 d5 2. e3 Nf6 3. c4 dxc4 - Reti opening (1)
              • A06 - 1. Nf3 d5 2. e3 Nf6 3. c4 e6 - Reti opening (15)
                • A06 - 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 - Reti opening (7)
                • A06 - 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. d4 - Reti opening (1)
                • A06 - 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. Nc3 - Reti opening (7)
        • A07 - 1. Nf3 d5 2. g3 - King's Indian Attack (49)
          • A07 - 1. Nf3 d5 2. g3 b6 3. - King's Indian Attack (1)
          • A07 - 1. Nf3 d5 2. g3 Bg4 - King's Indian Attack: Keres Variation (4)
          • A07 - 1. Nf3 d5 2. g3 c6 3. - King's Indian Attack (8)
            • A07 - 1. Nf3 d5 2. g3 c6 3. Bg2 - King's Indian Attack (8)
              • A07 - 1. Nf3 d5 2. g3 c6 3. Bg2 Bf5 - King's Indian Attack (2)
              • A07 - 1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 - King's Indian Attack (5)
                • A07 - 1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. O-O Nd7 - King's Indian Attack: Keres Variation (1)
            • A07 - 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. O-O Bf5 - King's Indian Attack, with Bf5 (1)
          • A07 - 1. Nf3 d5 2. g3 g6 - King's Indian Attack: Double Fianchetto (15)
            • A07 - 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 - King's Indian Attack: Double Fianchetto (5)
            • A07 - 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O - King's Indian Attack: Double Fianchetto (6)
            • A07 - 1. Nf3 d5 2. g3 g6 3. c4 dxc4 4. Na3 - King's Indian Attack: Double Fianchetto (4)
          • A07 - 1. Nf3 d5 2. g3 Nc6 - Reti (7)
          • A07 - 1. Nf3 d5 2. g3 Nd7 - King's Indian Attack (8)
          • A07 - 1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 - King's Indian Attack, with e6 (9)
            • A07 - 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 - English Opening: Agincourt Defense, Neo-Catalan Declined (9)
        • A08 - 1. Nf3 d5 2. g3 c5 3. Bg2 - King's Indian Attack: Sicilian Variation (19)
          • A08 - 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 - King's Indian Attack (10)
            • A08 - 1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 c5 5. g3 Nc6 6. Bg2 Be7 7. O-O O-O 8. Re1 - King's Indian Attack: Sicilian Variation (1)
            • A08 - 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 - Zukertort Opening: Reversed Grünfeld (9)
              • A08 - 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 cxd4 - Zukertort Opening: Reversed Grünfeld (1)
              • A08 - 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 e6 5. O-O - Zukertort Opening: Reversed Grünfeld (4)
              • A08 - 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 Nf6 - Zukertort Opening: Reversed Grünfeld (4)
                • A08 - 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 Nf6 5. O-O - Zukertort Opening: Reversed Grünfeld (4)
          • A08 - 1. Nf3 d5 2. g3 c5 3. Bg2 Nf6 4. O-O e6 - King's Indian Attack: Sicilian Variation (2)
          • A08 - 1. Nf3 d5 2. g3 c5 3. Bg2 Nf6 4. O-O g6 - King's Indian Attack: Sicilian Variation (3)
          • A08 - 1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. O-O d5 - Zukertort Opening: Reversed Grünfeld (2)
          • A08 - 1. Nf3 Nf6 2. g3 d5 3. Bg2 (2)
        • A09 - 1. Nf3 d5 2. c4 - Réti Opening (6)
          • A09 - 1. Nf3 d5 2. c4 c6 3. - Réti Opening (1)
          • A09 - 1. Nf3 d5 2. c4 d4 - Réti Opening: Advance Variation (4)
            • A09 - 1. Nf3 d5 2. c4 d4 3. b4 - Réti Opening: Advance Variation (3)
              • A09 - 1. Nf3 d5 2. c4 d4 3. b4 c5 - Réti Opening: Advance Variation, Michel Gambit (1)
              • A09 - 1. Nf3 d5 2. c4 d4 3. b4 c6 - Réti Opening: Advance Variation (1)
              • A09 - 1. Nf3 d5 2. c4 d4 3. b4 g5 - Réti Opening: Advance Variation (1)
            • A09 - 1. Nf3 d5 2. c4 d4 3. e3 c5 4. b4 - Réti Opening: Reversed Blumenfeld Gambit (1)
          • A09 - 1. Nf3 d5 2. c4 dxc4 - Réti Opening: Réti Accepted (1)
      • A10-A39 English Opening (263)
        • 1. c4 e6 2. g3 d5 3. Bg2 ... (28)
          • A13 - 1. c4 e6 - English Opening: Agincourt Defense (28)
            • A13 - 1. c4 e6 2. b3 - English Opening: Agincourt Defense (1)
            • A13 - 1. c4 e6 2. g3 - English Opening: Agincourt Defense, Bogoljubow Defense (7)
              • A13 - 1. c4 e6 2. g3 d5 - English Opening: Agincourt Defense (6)
              • A13 - 1. c4 e6 2. g3 Nf6 - English opening (1)
            • A13 - 1. c4 e6 2. Nc3 - English Opening: Agincourt Defense (4)
            • A13 - 1. c4 e6 2. Nf3 d5 - English Opening: Agincourt Defense (15)
              • A13 - 1. c4 e6 2. Nf3 d5 3. e3 - English Opening: Agincourt Defense (2)
              • A13 - 1. Nf3 d5 2. c4 e6 3. g3 - English Opening: Agincourt Defense (13)
                • A13 - 1. c4 e6 2. Nf3 d5 3. g3 Nf6 - English Opening: Neo-Catalan (12)
                  • A13 - 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 - English Opening: Neo-Catalan (12)
                    • A13 - 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Bd6 - English Opening: Agincourt Defense, Bogoljubow Defense (2)
                    • A13 - 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 dxc4 - English Opening: Agincourt Defense, Catalan Defense Accepted (4)
                    • A13 - 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 d4 - English Opening: Neo-Catalan (6)
                • A13 - 1. Nf3 d5 2. c4 e6 3. g3 d4 - English Opening: Agincourt Defense (1)
            • A13 - 1. c4 e6 2. Nf3 Nf6 3. b3 d5 4. Bb2 c5 5. e3 - English Opening: Agincourt Defense, Wimpy System (1)
        • A10 - 1. c4 - English Opening (7)
          • 1. c4 b6 2. Nc3 Bb7 3. d4 e6 4. e4 Bb4 - 1. c4 - English Opening (1)
          • A10 - 1. c4 d5 - English Opening: Anglo-Scandinavian Defense (0)
          • A10 - 1. c4 f5 - English Opening: Anglo-Dutch Defense (0)
          • A10 - 1. c4 g6 - English Opening: Great Snake Variation (6)
            • A10 - 1. c4 g6 2. e4 e5 - English Opening: Adorjan Defense (2)
          • A10 - 1. c4 Nc6 - English Opening: Anglo-Lithuanian Variation (0)
          • A10 - 1. c4 Nf6 2. e4 - English Opening: Achilles-Omega Gambit (0)
        • A10 - 1. Nf3 Nf6 2. c4 c5 3. g3 - English Opening: Anglo-Indian Defense, King's Knight Variation (0)
        • A11 - 1. c4 c6 - English Opening: Caro-Kann Defensive System (5)
          • A11 - 1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. b3 (1)
          • A11 - 1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 (1)
          • A11 - 1. c4 c6 2. Nf3 d5 3. g3 Nf6 4. Bg2 - Réti Opening: Anglo-Slav Variation, with g3 (3)
            • A11 - 1. c4 c6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Bf5 - Réti Opening: Anglo-Slav Variation, with g3 (1)
            • A11 - 1. c4 c6 2. Nf3 d5 3. g3 Nf6 4. Bg2 dxc4 - Réti Opening: Anglo-Slav Variation, with g3 (2)
        • A12 - 1. Nf3 d5 2. c4 c6 3. b3 - Réti Opening: Anglo-Slav Variation, Bogoljubow Variation (0)
          • A12 - 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4.... - Réti Opening (0)
            • A12 - 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 - Réti Opening: Anglo-Slav Variation (0)
              • A12 - 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bf5 - Réti Opening: Anglo-Slav Variation, London Defensive System (0)
              • A12 - 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bg4 - Réti Opening: Anglo-Slav Variation, Torre System (0)
              • A12 - 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 dxc4 - Réti Opening: Anglo-Slav Variation, with dxc4 (0)
            • A12 - 1. c4 Nf6 2. Nf3 c6 3. b3 d5 4. Bb2 Bg4 - Réti Opening: Anglo-Slav Variation, Capablanca Variation (0)
            • A12 - 1. Nf3 d5 2. b3 Nf6 3. Bb2 g6 4. c4 c6 - Réti Opening: Anglo-Slav Variation, Bled Variation (0)
            • A12 - 1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. Bb2 Bf5 - Réti Opening: Anglo-Slav Variation, New York System (0)
          • A12 - 1. Nf3 d5 2. c4 c6 3. b3 Bf5 - Réti Opening: Anglo-Slav Variation, Bogoljubow Variation (0)
            • A12 - 1. Nf3 d5 2. c4 c6 3. b3 Bf5 4. Bb2 - Réti Opening: Anglo-Slav Variation, Bogoljubow Variation (0)
          • A12 - 1. Nf3 d5 2. c4 c6 3. b3 Bg4 - Réti Opening: Anglo-Slav Variation, Bogoljubow Variation (0)
        • A14 - 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4.... - English Opening (27)
          • A14 - 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. b3 - English Opening: Agincourt Defense, Neo-Catalan Declined, Early b3 (1)
          • A14 - 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O - English Opening: Agincourt Defense, Neo-Catalan Declined (26)
            • A14 - 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. O-O O-O 6. d3 (12)
            • A14 - 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3 (9)
            • A14 - 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. Re1 (1)
            • A14 - 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. d4 (2)
            • A14 - 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. c4 O-O 6. cxd5 (1)
            • A14 - 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. c4 O-O 6. Ne5 (1)
          • A14 - 1. Nf3 d5 2. c4 c6 3. g3 Nf6 4. Bg2 e6 5. b3 Be7 6. Bb2 - Réti Opening: Anglo-Slav Variation (0)
        • A15 - 1. c4 Nf6 - English Opening: Anglo-Indian Defense (10)
          • A15 - 1. c4 Nf6 2. g3 - English Opening: Anglo-Indian Defense (1)
            • A15 - 1. c4 1... Nf6 2. g3 2... e5 - English Opening: Anglo-Indian Defense (0)
            • A15 - 1. c4 Nf6 2. g3 e6 - English Opening: Anglo-Indian Defense (1)
          • A15 - 1. c4 Nf6 2. Nf3 b6 - English Opening: Anglo-Indian Defense, Queen's Indian Formation (3)
          • A15 - 1. c4 Nf6 2. Nf3 g6 - English Opening: Anglo-Indian Defense, King's Indian Formation (6)
        • A15 - 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 - English Opening: Anglo-Indian Defense, King's Knight Variation (2)
        • A15 - 1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. d4 (2)
        • A15 - 1. Nf3 Nf6 2. c4 c5 3. g3 Nc6 4. d4 cxd4 - English Opening: Anglo-Indian Defense, King's Knight Variation (1)
        • A15 - 1. Nf3 Nf6 2. c4 e6 - English opening (19)
          • A15 - 1. c4 e6 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7 - English Opening: Anglo-Indian Defense, Queen's Indian Formation (2)
          • A15 - 1. Nf3 Nf6 2. c4 e6 3. b3 - English opening (13)
          • A15 - 1. Nf3 Nf6 2. c4 e6 3. Nc3 - English opening (4)
        • A15 - 1. Nf3 Nf6 2. c4 Nc6 - English opening (2)
        • A16 - 1. c4 Nf6 2. Nc3 - English Opening: Anglo-Indian Defense, Queen's Knight Variation (4)
          • A16 - 1. c4 Nf6 2. Nc3 d5 - English Opening: Anglo-Grünfeld Defense (3)
            • A16 - 1. c4 Nf6 2. Nc3 d5 3. cxd5 - English Opening: Anglo-Grünfeld Defense (3)
              • A16 - 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 - English Opening: Anglo-Grünfeld Defense (2)
                • A16 - 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nb6 - English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation (0)
                • A16 - 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nxc3 - English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation (0)
                • A16 - 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 - English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation (1)
                  • A16 - 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 g6 - English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation (1)
                    • A16 - 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 g6 5. g3 Bg7 6. Bg2 e5 - English Opening: Anglo-Grünfeld Defense, Korchnoi Variation (0)
                    • A16 - 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. h4 - English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation (1)
                • A16 - 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 - English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation (1)
          • A16 - 1. c4 Nf6 2. Nc3 g6 - English Opening: Anglo-Indian Defense, Queen's Knight Variation (1)
        • A17 - 1. c4 Nf6 2. Nc3 e6 - English Opening: Anglo-Indian Defense, Hedgehog System (0)
          • A17 - 1. c4 e6 2. Nc3 Nf6 3. Nf3 b6 - English Opening: Anglo-Indian Defense, Queen's Indian Formation (0)
            • A17 - 1. c4 e6 2. Nc3 Nf6 3. Nf3 b6 4. e4 Bb7 5. Bd3 - English Opening: Anglo-Indian Defense, Queen's Indian Variation (0)
          • A17 - 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 c5 5. e3 e6 - English Opening: Anglo-Indian Defense (0)
          • A17 - 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 - English Opening: Anglo-Indian Defense, Nimzo-English (0)
            • A17 - 1. c4 e6 2. Nc3 Nf6 3. Nf3 Bb4 4. g4 - English Opening: Anglo-Indian Defense, Zvjaginsev-Krasenkow Attack (0)
        • A18 - 1. c4 e6 2. Nc3 Nf6 3. e4 - English Opening (2)
        • A19 - 1. c4 e6 2. Nc3 Nf6 3. e4 c5 - English Opening: Mikenas-Carls, Sicilian (2)
          • A19 - 1. c4 e6 2. Nc3 Nf6 3. e4 c5 4. e5 Ng8 - English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit (2)
        • A20 - 1. c4 e5 - English Opening: King's English Variation (32)
          • A20 - 1. c4 e5 2. d3 - English opening (11)
          • A20 - 1. c4 e5 2. e3 Nf6 3. f4 exf4 4. Nf3 - English Opening: King's English Variation, Kahiko-Hula Gambit (0)
          • A20 - 1. c4 e5 2. e3 Nf6 3. Nc3 Bb4 (1)
          • A20 - 1. c4 e5 2. g3 - English Opening (19)
            • A20 - 1. c4 e5 2. g3 Be7 3. - English Opening: King's English Variation (2)
            • A20 - 1. c4 e5 2. g3 c6 3. - English Opening: King's English Variation (2)
            • A20 - 1. c4 e5 2. g3 d5 3. - English Opening: King's English Variation (8)
            • A20 - 1. c4 e5 2. g3 h5 - English Opening: Drill Variation (0)
            • A20 - 1. c4 e5 2. g3 Nc6 3. - English Opening: King's English Variation (2)
            • A20 - 1. c4 e5 2. g3 Nf6 - English Opening: King's English Variation (5)
          • A20 - 1. c4 e5 2. Nf3 - English Opening: King's English Variation, Nimzowitsch Variation (1)
            • A20 - 1. c4 e5 2. Nf3 e4 - English Opening: King's English Variation, Nimzowitsch-Flohr Variation (1)
        • A21 - 1. c4 e5 2. Nc3 - English Opening: King's English Variation, Reversed Sicilian (15)
          • A21 - 1. c4 e5 2. Nc3 Bb4 - English Opening: King's English Variation, Kramnik-Shirov Counterattack (14)
          • A21 - 1. c4 e5 2. Nc3 d6 3. - English Opening: King's English Variation (1)
        • A22 - 1. c4 e5 2. Nc3 Nf6 - English Opening: King's English Variation, Two Knights Variation (6)
          • A22 - 1. c4 e5 2. Nc3 Nf6 3. e3 - English Opening: King's English Variation, Two Knights Variation (2)
          • A22 - 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 - English Opening: King's English Variation, Two Knights Variation, Smyslov System (2)
          • A22 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 e4 4. Ng5 c6 - English Opening: King's English Variation, Adhiban Gambit (2)
        • A23 - 1. c4 e5 2. Nc3 Nf6 3. g3 c6 - English Opening: King's English Variation, Two Knights Variation, Keres Variation (1)
          • A23 - 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 c6 - English Opening: King's English Variation, Two Knights Variation, Keres Variation (1)
        • A24 - 1. c4 e5 2. Nc3 Nf6 3. g3 g6 - English Opening: King's English Variation, Two Knights Variation, Fianchetto Line (0)
        • A25 - 1. c4 e5 2. Nc3 Nc6 - English Opening: King's English Variation, Reversed Closed Sicilian (3)
          • A25 - 1. c4 e5 2. Nc3 Nc6 3. g3 f5 (1)
          • A25 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4.... - English Opening (2)
            • A25 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 - English Opening: King's English Variation, Taimanov Variation (2)
              • A25 - 1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. e4 - English Opening: King's English Variation, Taimanov Variation (1)
              • A25 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 - English Opening: King's English Variation, Closed System (0)
              • A25 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 - English Opening: King's English Variation, Taimanov Variation (1)
                • A25 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 - English Opening: King's English Variation, Taimanov Variation (1)
                  • A25 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 - English Opening: King's English Variation, Taimanov Variation (1)
                    • A25 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 Be6 - English Opening: King's English Variation, Bremen-Hort Variation (0)
              • A25 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Rb1 - English Opening: King's English Variation, Hungarian Attack (0)
            • A25 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Rb1 Nh6 5. Bg2 Bg7 - English Opening: Closed, Taimanov Variation (0)
        • A26 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4.... - English Opening (0)
          • A26 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 - English Opening: King's English Variation, Closed System, Full Symmetry (0)
            • A26 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. e4 - English Opening: King's English Variation, Botvinnik System (0)
        • A27 - 1. c4 e5 2. Nc3 Nc6 3. Nf3 - English Opening: King's English Variation, Three Knights System (0)
        • A28 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4.... - English Opening (21)
          • A28 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. a3 - English Opening: King's English Variation, Four Knights Variation, Korchnoi Line (1)
          • A28 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d3 - English Opening: King's English Variation, Four Knights Variation, Flexible Line (6)
          • A28 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 - English Opening: King's English Variation, Four Knights Variation, Quiet Line (12)
            • A28 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 g6 5. d4 exd4 - English Opening: King's English Variation, Four Knights Variation, Quiet Line (1)
            • A28 - 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 - English Opening: King's English Variation, Four Knights Variation, Quiet Line (8)
            • A28 - 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O - English Opening: King's English Variation, Four Knights Variation, Quiet Line (1)
            • A28 - 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 d6 5. d4 Bd7 - English Opening: King's English Variation, Four Knights Variation, Quiet Line (1)
          • A28 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4 - English Opening: Four Knights System, Nimzowitsch Variation (1)
          • A28 - 1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 - English Opening: King's English Variation, Four Knights Variation (2)
        • A29 - 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line (4)
        • A29 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line (19)
          • A29 - 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 Bb4 - English Opening: King's English Variation (2)
          • A29 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 (14)
            • A29 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line (14)
              • A29 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Bc5 - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Bc5 (6)
              • A29 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Be6 - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line (1)
              • A29 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nb6 - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 (7)
          • A29 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 g6 5. - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line (1)
          • A29 - 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bc5 - English Opening: King's English Variation (1)
            • A29 - 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bc5 5. d3 - English Opening: King's English Variation (1)
              • A29 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bc5 5. d3 d6 6. Bg2 - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with .. d6 (0)
                • A29 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bc5 5. d3 d6 6. Bg2 a6 - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with .. d6, a6 (0)
                • A29 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bc5 5. d3 d6 6. Bg2 h6 - English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with .. d6, h6 (0)
          • A29 - 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Nd4 - English Opening: King's English Variation (1)
        • A30 - 1. c4 c5 - English Opening: Symmetrical Variation (5)
          • A30 - 1. c4 c5 2. b4 - English Opening: Wing Gambit (0)
          • A30 - 1. c4 c5 2. Nf3 Nf6 3. b4 - English Opening: Symmetrical Variation, Napolitano Gambit (0)
          • A30 - 1. c4 c5 2. Nf3 Nf6 3. g3 d5 - English Opening: Symmetrical Variation (3)
          • A30 - 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 cxd4 8. Qxd4 (2)
            • A30 - 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 cxd4 8. Qxd4 O-O - English Opening: Symmetrical Variation, Hedgehog Defense (1)
            • A30 - 1. c4 e6 2. Nf3 c5 3. Nc3 Nf6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 cxd4 8. Qxd4 d6 9. Rd1 a6 10. b3 Nbd7 - English Opening: Symmetrical, Hedgehog, Flexible Formation (0)
            • A30 - 1. c4 Nf6 2. Nc3 c5 3. g3 e6 4. Nf3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 cxd4 8. Qxd4 Nc6 - English Opening: Symmetrical Variation, Hedgehog Defense (1)
        • A30 - 1. Nf3 c5 2. c4 g6 3. e4 Bg7 4. d4 d6 - English Opening: Symmetrical Variation (1)
        • A30 - 1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Nf6 - English Opening: Symmetrical Variation (1)
        • A30 - 1. Nf3 c5 2. c4 Nc6 3. Nc3 e5 - English Opening: Symmetrical Variation (1)
        • A30 - 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. e3 Nf6 - English Opening: Symmetrical Variation (1)
        • A30 - 1. Nf3 c5 2. c4 Nf6 3. g3 Nc6 4. Bg2 d5 - English Opening: Symmetrical Variation (1)
        • A31 - 1. c4 Nf6 2. d4 c5 3. Nf3 - English Opening (1)
        • A32 - 1. c4 e6 2. d4 c5 3. Nf3 cxd4 4.... - English Opening (1)
          • A32 - 1. c4 e6 2. d4 c5 3. Nf3 cxd4 4. Nxd4 Nf6 - English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense (1)
        • A33 - 1. c4 e6 2. Nf3 Nf6 3. Nc3 c5 4.... - English Opening (8)
          • A33 - 1. c4 e6 2. Nf3 Nf6 3. Nc3 c5 4. d4 cxd4 5. Nxd4 Nc6 - English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense (6)
          • A33 - 1. c4 e6 2. Nf3 Nf6 3. Nc3 c5 4. d4 Nc6 5. g3 cxd4 6. Nxd4 Qb6 - English Opening: Symmetrical Variation, Anti-Benoni Variation, Geller Variation (2)
        • A34 - 1. c4 c5 2. Nc3 - English Opening: Symmetrical Variation, Normal Variation (9)
          • A34 - 1. c4 c5 2. Nc3 Nf6 3. Nf3 - English Opening: Symmetrical Variation, Three Knights Variation (9)
            • A34 - 1. c4 c5 2. Nf3 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Nc6 6. Bg2 Nc7 - English Opening: Symmetrical Variation, Rubinstein Variation (3)
            • A34 - 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4.... - English Opening (2)
            • A34 - 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 - English Opening: Symmetrical Variation, Three Knights Variation (4)
              • A34 - 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. d4 cxd4 - English Opening: Symmetrical Variation, Three Knights Variation (1)
              • A34 - 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. e3 a6 - English Opening: Symmetrical Variation, Three Knights Variation (1)
              • A34 - 1. c4 Nf6 2. Nc3 c5 3. Nf3 e6 4. g3 b6 - English Opening: Symmetrical Variation, Three Knights Variation (1)
              • A34 - 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. e4 - English Opening: Symmetrical Variation, Three Knights Variation (1)
          • A34 - 1. c4 Nf6 2. Nc3 c5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc7 - English Opening: Symmetrical Variation, Rubinstein Variation (0)
        • A34 - 1. c4 Nf6 2. Nc3 c5 3. g3 g6 4. Bg2 Bg7 - English Opening: Symmetrical Variation, Fianchetto Variation (1)
        • A35 - 1. c4 c5 2. Nc3 Nc6 - English Opening: Symmetrical Variation, Two Knights Variation (5)
          • A35 - 1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 - English Opening: Symmetrical Variation, Four Knights Variation (5)
        • A36 - 1. c4 c5 2. Nc3 Nc6 3. g3 - English Opening: Symmetrical Variation, Two Knights, Fianchetto Variation (8)
          • A36 - 1. c4 c5 2. e4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 - English Opening: Symmetrical Variation, Botvinnik System (0)
          • A36 - 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 - English Opening: Symmetrical Variation, Ultra-Symmetrical Variation (8)
            • A36 - 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. e3 - English Opening: Symmetrical Variation, Ultra-Symmetrical Variation (2)
              • A36 - 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. e3 e6 - English Opening: Symmetrical Variation, Ultra-Symmetrical Variation (2)
              • A36 - 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 e5 - English Opening: Symmetrical Variation, Botvinnik System Reversed, with e3 (0)
            • A36 - 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. Rb1 - English Opening: Symmetrical Variation, Ultra-Symmetrical Variation (1)
            • A36 - 1. c4 c5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. d3 - English Opening: Symmetrical Variation, Ultra-Symmetrical Variation (5)
        • A37 - 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 - English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation (5)
          • A37 - 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. Nf3 e6 - English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation (1)
          • A37 - 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 d6 (4)
          • A37 - 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 e5 - English Opening: Symmetrical Variation, Botvinnik System Reversed, with Nf3 (0)
        • A38 - 1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 - English Opening: Symmetrical Variation, Full Symmetry Line (2)
          • A38 - 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O (0)
            • A38 - 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. b3 - English Opening: Symmetrical Variation, Double Fianchetto (0)
          • A38 - 1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. Nc3 Nc6 6. d4 (2)
        • A38 - 1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 - English Opening: Symmetrical Variation, Full Symmetry Line (0)
          • A38 - 1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c5 6. Nc3 Nc6 7. d3 - English Opening: Symmetrical Variation, Duchamp Variation (0)
        • A38 - 1. Nf3 c5 2. c4 Nf6 3. g3 Nc6 4. Bg2 g6 - English Opening: Symmetrical Variation, Full Symmetry Line (1)
        • A39 - 1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4 - English Opening: Symmetrical Variation, Mecking Variation (0)
      • A40 - A49 1. d4 (101)
        • A40 - 1. d4 - Queen's Pawn Game (5)
        • A41 - 1. d4 d6 - Queen's Pawn Game (0)
        • A42 - 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 - Modern Defense: Averbakh System (0)
        • A43 - 1. d4 c5 - Benoni Defense: Old Benoni (0)
        • A43 - 1. d4 Nf6 2. Nf3 c5 3. d5 b5 - Indian Defense: Pseudo-Benko (1)
        • A44 - 1. d4 c5 2. d5 e5 - Benoni Defense (0)
        • A45 - 1. d4 Nf6 - Indian Defense (46)
          • A45 - 1. d4 Nf6 2. Bf4 - Indian Defense: Accelerated London System (17)
            • A45 - 1. d4 Nf6 2. Bf4 b6 - Indian Defense: Accelerated London System (1)
            • A45 - 1. d4 Nf6 2. Bf4 c5 - Indian Defense (2)
              • A45 - 1. d4 Nf6 2. Bf4 c5 3. d5 - Indian Defense (2)
                • A45 - 1. d4 Nf6 2. Bf4 c5 3. d5 b5 - Indian Defense (1)
                • A45 - 1. d4 Nf6 2. Bf4 c5 3. d5 d6 (1)
            • A45 - 1. d4 Nf6 2. Bf4 d5 - Indian Defense (9)
            • A45 - 1. d4 Nf6 2. Bf4 e6 3. - Indian Defense (2)
            • A45 - 1. d4 Nf6 2. Bf4 g6 - Queen's pawn game (2)
          • A45 - 1. d4 Nf6 2. Bg5 - Trompowsky Attack (28)
            • A45 - 1. d4 Nf6 2. Bg5 c5 - Trompowsky Attack (4)
              • A45 - 1. d4 Nf6 2. Bg5 c5 3. Bxf6 - Trompowsky Attack (3)
              • A45 - 1. d4 Nf6 2. Bg5 c5 3. d5 Qb6 4. Nc3 - Trompowsky Attack: Poisoned Pawn Variation (1)
            • A45 - 1. d4 Nf6 2. Bg5 c6 - Trompowsky Attack (1)
            • A45 - 1. d4 Nf6 2. Bg5 d5 - Trompowsky Attack (18)
              • A45 - 1. d4 Nf6 2. Bg5 d5 3. e3 c5 - Trompowsky Attack (7)
              • A45 - 1. d4 Nf6 2. Bg5 d5 3. e3 c6 - Trompowsky Attack (2)
              • A45 - 1. d4 Nf6 2. Bg5 d5 3. e3 e6 - Trompowsky Attack (2)
              • A45 - 1. d4 Nf6 2. Bg5 d5 3. e3 Nbd7 - Trompowsky Attack (1)
              • A45 - 1. d4 Nf6 2. Bg5 d5 3. Nd2 Bf5 - Trompowsky Attack (1)
              • A45 - 1. d4 Nf6 2. Bg5 d5 3. Nd2 c5 - Trompowsky Attack (3)
              • A45 - 1. d4 Nf6 2. Bg5 d5 3. Nd2 c6 - Trompowsky Attack (1)
              • A45 - 1. d4 Nf6 2. Bg5 d5 3. Nd2 e6 - Trompowsky Attack (1)
            • A45 - 1. d4 Nf6 2. Bg5 e6 - Trompowsky Attack (3)
              • A45 - 1. d4 Nf6 2. Bg5 e6 3. e4 - Trompowsky Attack: Classical Defense, Big Center Variation (1)
              • A45 - 1. d4 Nf6 2. Bg5 e6 3. Nd2 - Trompowsky Attack: Classical Defense (2)
            • A45 - 1. d4 Nf6 2. Bg5 g6 - Trompowsky Attack (1)
            • A45 - 1. d4 Nf6 2. Bg5 Ne4 - Trompowsky Attack (1)
          • A45 - 1. d4 Nf6 2. c3 - Indian Defense (1)
          • A45 - 1. d4 Nf6 2. Nc3 d5 - Queen's Pawn Game: Chigorin Variation (0)
        • A46 - 1. d4 Nf6 2. Nf3 - Indian Defense: Knights Variation (24)
          • A46 - 1. d4 Nf6 2. Nf3 d6 - Indian Defense: Wade-Tartakower Defense (6)
          • A46 - 1. d4 Nf6 2. Nf3 e6 3. Bf4 (9)
          • A46 - 1. d4 Nf6 2. Nf3 e6 3. Bg5 - Torre Attack: Classical Defense (2)
          • A46 - 1. d4 Nf6 2. Nf3 e6 3. e3 - Yusupov-Rubinstein System (4)
          • A46 - 1. d4 Nf6 2. Nf3 e6 3. g3 - Indian Defense: Knights Variation (2)
          • A46 - 1. d4 Nf6 2. Nf3 e6 3. Nbd2 (1)
          • A46 - 1. d4 Nf6 2. Nf3 Ne4 - Döry Defense (0)
        • A47 - 1. d4 Nf6 2. Nf3 b6 - Pseudo Queen's Indian Defense (3)
        • A48 - 1. d4 Nf6 2. Bg5 d5 3. e3 g6 4. Nf3 Bg7 - Queen's Pawn Game: Torre Attack, Grünfeld Variation, Main Line (1)
        • A48 - 1. d4 Nf6 2. Nf3 g6 - East Indian Defense (19)
          • A48 - 1. d4 Nf6 2. Nf3 g6 3. Bf4 - London System (4)
            • A48 - 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 - London System (4)
              • A48 - 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 - London System (2)
              • A48 - 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 - London System (2)
                • A48 - 1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Nf3 O-O - London System (2)
                • A48 - 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Be2 O-O - London System, with Be2 (1)
          • A48 - 1. d4 Nf6 2. Nf3 g6 3. Bg5 - Torre Attack: Fianchetto Defense (5)
          • A48 - 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 d6 - Indian Defense: Colle System, King's Indian Variation (0)
          • A48 - 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 d5 (1)
          • A48 - 1. d4 Nf6 2. Nf3 g6 3. Nbd2 - East Indian Defense (8)
          • A48 - 1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 - Queen's Pawn Game: Barry Attack (1)
        • A49 - 1. d4 Nf6 2. Nf3 g6 3. g3 - Indian Defense: Przepiorka Variation (2)
      • A50 - A59 1. d4 Nf6 2. c4 (14)
        • A50 - 1. d4 Nf6 2. c4 - Indian Defense: Normal Variation (8)
          • A50 - 1. d4 Nf6 2. c4 c6 - Slav Indian (2)
          • A50 - 1. d4 Nf6 2. c4 Nc6 - Mexican Defense (0)
        • A51 - 1. d4 Nf6 2. c4 e5 - Indian Defense (0)
        • A52 - 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 - Indian Defense: Budapest Defense (0)
        • A53 - 1. d4 Nf6 2. c4 d6 - Old Indian Defense (1)
          • A53 - 1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 - Old Indian Defense: Janowski Variation (0)
          • A53 - 1. d4 Nf6 2. c4 d6 3. Nc3 c6 - Old Indian Defense: Czech Variation, with Nc3 (0)
          • A53 - 1. d4 Nf6 2. c4 d6 3. Nf3 c6 - Old Indian Defense: Czech Variation, with Nf3 (0)
          • A53 - 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. g3 Bg7 - Old Indian Defense (1)
        • A54 - 1. d4 Nf6 2. c4 d6 3. Nc3 e5 - Old Indian Defense: Ukrainian Variation (0)
          • A54 - 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. e3 Nbd7 5. Bd3 - Old Indian Defense: Duz-Khotimirsky Variation (0)
          • A54 - 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 - Old Indian Defense: Two Knights Variation (0)
        • A55 - 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. Nf3 - Old Indian Defense: Normal Variation (0)
        • A56 - 1. d4 Nf6 2. c4 c5 - Benoni Defense (1)
          • A56 - 1. d4 Nf6 2. c4 c5 3. d5 d6 - Benoni Defense: Hromádka System (0)
          • A56 - 1. d4 Nf6 2. c4 c5 3. d5 e5 - Benoni Defense: Czech Benoni Defense (0)
          • A56 - 1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. Nf3 - Benoni Defense (1)
          • A56 - 1. d4 Nf6 2. c4 c5 3. dxc5 e6 - Benoni Defense: Weenink Variation (0)
        • A57 - 1. d4 Nf6 2. c4 c5 3. d5 b5 - Benko Gambit (4)
          • A57 - 1. d4 Nf6 2. c4 c5 3. d5 b5 4. a4 - Benko Gambit Declined: Sosonko Variation (0)
          • A57 - 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Bg5 - Benko Gambit Declined: Bishop Attack (0)
          • A57 - 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 - Benko Gambit Accepted (4)
            • A57 - 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 - Benko Gambit Accepted: Pawn Return Variation (0)
            • A57 - 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 - Benko Gambit Accepted: Modern Variation (4)
            • A57 - 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. f3 - Benko Gambit Accepted: Dlugy Variation (0)
            • A57 - 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 - Benko Gambit: Zaitsev System (0)
              • A57 - 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. e4 b4 7. Nb5 - Benko Gambit: Zaitsev Variation, Nescafe Frappe Attack (0)
                • A57 - 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. e4 b4 7. Nb5 d6 8. Bc4 - Benko Gambit: Nescafe Frappe Attack (0)
          • A57 - 1. d4 Nf6 2. c4 c5 3. d5 b5 4. e4 - Benko Gambit Declined: Hjørring Countergambit (0)
          • A57 - 1. d4 Nf6 2. c4 c5 3. d5 b5 4. f3 - Benko Gambit Declined: Pseudo-Sämisch (0)
          • A57 - 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nd2 - Benko Gambit Declined: Quiet Line (0)
          • A57 - 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 - Benko Gambit Declined: Main Line (0)
        • A58 - 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 - Benko Gambit Accepted: Fully Accepted Variation (0)
        • A59 - 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. e4 - Benko Gambit Accepted: Yugoslav (0)
      • A60-A79 1. d4 Nf6 2. c4 c6 3. d5 e6 Modern Benoni Defense (7)
        • A60 - 1. d4 Nf6 2. c4 c5 3. d5 e6 - Benoni Defense (0)
          • A60 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 Bd6 - Benoni Defense: Modern Variation, Snake Variation (0)
        • A61 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4.... - Benoni Defense (1)
          • A61 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 - Benoni Defense (1)
            • A61 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 d6 5. Nc3 exd5 6. cxd5 g6 7. h3 - Benoni Defense (1)
            • A61 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg5 - Benoni Defense: Uhlmann Variation (0)
            • A61 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. g3 - Benoni Defense: Fianchetto Variation (0)
            • A61 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 - Benoni Defense: Knight's Tour Variation (0)
        • A62 - 1. d4 Nf6 2. c4 e6 3. g3 c5 4.... - Benoni Defense (3)
          • A62 - 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O - Benoni Defense: Fianchetto Variation (3)
        • A63 - 1. d4 Nf6 2. c4 e6 3. g3 c5 4.... - Benoni Defense (0)
          • A63 - 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O Nbd7 - Benoni Defense: Fianchetto Variation, Hastings Defense (0)
        • A64 - 1. d4 Nf6 2. c4 e6 3. g3 c5 4.... - Benoni Defense (0)
          • A64 - 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O a6 10. a4 Nbd7 11. Nd2 Re8 - Benoni Defense: Fianchetto Variation, Hastings Defense, Main Line (0)
        • A65 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 - Benoni Defense: King's Pawn Line (1)
          • A65 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f3 Bg7 8. Nge2 - Benoni Defense: King's Pawn Line, with Nge2 (1)
        • A66 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4.... - Benoni Defense (1)
          • A66 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 - Benoni Defense: Pawn Storm Variation (1)
            • A66 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg4 - Benoni Defense: Pawn Storm Variation (1)
            • A66 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. e5 - Benoni Defense: Mikenas Variation (0)
        • A67 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4.... - Benoni Defense (0)
          • A67 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ - Benoni Defense: Taimanov Variation (0)
        • A68 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4.... - Benoni Defense (0)
          • A68 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Nf3 O-O - Benoni Defense: Four Pawns Attack (0)
        • A69 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4.... - Benoni Defense (0)
          • A69 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Nf3 O-O 9. Be2 Re8 - Benoni Defense: Four Pawns Attack, Main Line (0)
        • A70 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4.... - Benoni Defense (0)
          • A70 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 - Benoni Defense: Classical Variation (0)
            • A70 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2 - Benoni Defense: Classical Variation, Traditional Variation (0)
            • A70 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. h3 - Benoni Defense: Classical Variation, New York Variation (0)
        • A71 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4.... - Benoni Defense (0)
          • A71 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Bg5 - Benoni Defense: Classical Variation, Averbakh-Grivas Attack (0)
        • A72 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4.... - Benoni Defense (0)
          • A72 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O - Benoni Defense: Classical Variation (0)
        • A73 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4.... - Benoni Defense (0)
          • A73 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O - Benoni Defense: Classical Variation, Main Line (0)
        • A74 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4.... - Benoni Defense (0)
          • A74 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O a6 10. a4 - Benoni Defense: Classical Variation, Full Line (0)
        • A75 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4.... - Benoni Defense (1)
          • A75 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2 O-O 9. O-O a6 10. a4 Bg4 - Benoni Defense: Classical Variation, Argentine Counterattack (1)
        • A76 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4.... - Benoni Defense (0)
          • A76 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 - Benoni Defense: Classical Variation, Czerniak Defense (0)
        • A77 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4.... - Benoni Defense (0)
          • A77 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 - Benoni Defense: Classical Variation, Czerniak Defense, Tal Line (0)
        • A78 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4.... - Benoni Defense (0)
          • A78 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 Na6 - Benoni Defense: Classical Variation, Czerniak Defense (0)
        • A79 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4.... - Benoni Defense (0)
          • A79 - 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 Na6 11. f3 - Benoni Defense: Classical Variation, Czerniak Defense (0)
      • A80-A99 1. d4 f5 Dutch (4)
        • A80 - 1. d4 f5 - Dutch Defense (0)
        • A81 - 1. d4 f5 2. g3 - Dutch Defense: Fianchetto Attack (1)
          • A81 - 1. d4 f5 2. g3 c6 3. Bg2 g6 4. Nf3 Bg7 5. O-O Nh6 - Dutch Defense: Leningrad, Basman System (0)
          • A81 - 1. d4 f5 2. g3 g6 3. Bg2 Bg7 4. Nh3 - Dutch Defense: Leningrad Variation, Carlsbad Variation (0)
          • A81 - 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4.... - Dutch Defense (1)
            • A81 - 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nh3 - Dutch Defense: Blackburne Variation (0)
          • A81 - 1. d4 f5 2. g3 Nf6 3. Bg2 g6 - Dutch Defense: Semi-Leningrad Variation (1)
        • A82 - 1. d4 f5 2. e4 - Dutch Defense: Staunton Gambit (0)
          • A82 - 1. d4 f5 2. e4 fxe4 - Dutch Defense: Staunton Gambit Accepted (0)
            • A82 - 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4.... - Dutch Defense (0)
              • A82 - 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. f3 - Dutch Defense: Blackmar's Second Gambit (0)
              • A82 - 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. g4 - Dutch Defense: Staunton Gambit, Tartakower Variation (0)
            • A82 - 1. d4 f5 2. e4 fxe4 3. Nd2 - Dutch Defense: Staunton Gambit, American Attack (0)
          • A82 - 1. e4 d6 2. d4 f5 - Rat Defense: Balogh Defense (0)
        • A83 - 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4.... - Dutch Defense (0)
          • A83 - 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 - Dutch Defense: Staunton Gambit (0)
            • A83 - 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 b6 - Dutch Defense: Staunton Gambit, Nimzowitsch Variation (0)
            • A83 - 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 c6 - Dutch Defense: Staunton Gambit, Chigorin Variation (0)
            • A83 - 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 g6 5. f3 - Dutch Defense: Staunton Gambit, Lasker Variation (0)
            • A83 - 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 g6 5. h4 - Dutch Defense: Staunton Gambit, Alekhine Variation (0)
        • A84 - 1. d4 f5 2. c4 - Dutch Defense (1)
          • A84 - 1. d4 f5 2. c4 e6 - Dutch Defense: Classical Variation (0)
            • A84 - 1. d4 f5 2. c4 e6 3. e4 - Dutch Defense: Bellon Gambit (0)
            • A84 - 1. d4 f5 2. c4 e6 3. Nc3 - Dutch Defense: Rubinstein Variation (0)
          • A84 - 1. d4 f5 2. c4 g6 3. Nc3 Nh6 - Dutch Defense: Bladel Variation (0)
          • A84 - 1. d4 f5 2. c4 Nf6 - Dutch Defense: Normal Variation (1)
            • A84 - 1. d4 f5 2. c4 Nf6 3. Nc3 d6 4. Nf3 Nc6 - Dutch Defense: Krause Variation (0)
            • A84 - 1. d4 f5 2. c4 Nf6 3. Nf3 - Dutch Defense: Normal Variation (1)
        • A85 - 1. d4 f5 2. c4 Nf6 3. Nc3 - Dutch Defense (0)
        • A86 - 1. d4 f5 2. c4 Nf6 3. g3 - Dutch Defense (0)
          • A86 - 1. d4 f5 2. c4 Nf6 3. g3 d6 4. Bg2 c6 5. Nc3 Qc7 - Dutch Defense: Hort-Antoshin System (0)
          • A86 - 1. d4 f5 2. c4 Nf6 3. g3 g6 - Dutch Defense: Leningrad Variation (0)
        • A87 - 1. d4 f5 2. c4 Nf6 3. g3 g6 4.... - Dutch Defense (0)
          • A87 - 1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 - Dutch Defense: Leningrad Variation (0)
        • A88 - 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4.... - Dutch Defense (0)
          • A88 - 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 c6 - Dutch Defense: Leningrad Variation, Warsaw Variation (0)
        • A89 - 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4.... - Dutch Defense (0)
          • A89 - 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 Nc6 - Dutch Defense: Leningrad Variation, Matulovic Variation (0)
        • A90 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4.... - Dutch Defense (2)
          • A90 - 1. d4 f5 2. c4 e6 3. Nf3 Nf6 4. g3 c6 5. Bg2 d5 6. O-O Bd6 - Dutch Defense: Stonewall Variation, Modern Variation (0)
          • A90 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 - Dutch Defense: Classical Variation (2)
            • A90 - 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d5 - Dutch Defense: Classical Variation (2)
              • A90 - 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d5 5. Nh3 - Dutch Defense: Classical Variation (1)
              • A90 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 d5 5. Nf3 - Dutch Defense: Classical Variation (1)
            • A90 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Bb4+ - Dutch Defense: Nimzo-Dutch Variation (0)
              • A90 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Bb4+ 5. Bd2 Be7 - Dutch Defense: Nimzo-Dutch Variation, Alekhine Variation (0)
        • A91 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4.... - Dutch Defense (0)
          • A91 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 - Dutch Defense: Classical Variation (0)
            • A91 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nh3 - Dutch Defense: Classical Variation, Blackburne Attack (0)
        • A92 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4.... - Dutch Defense (0)
          • A92 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O - Dutch Defense: Classical Variation (0)
            • A92 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. Nc3 - Dutch Defense: Stonewall Variation (0)
            • A92 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O Ne4 - Dutch Defense: Alekhine Variation (0)
        • A93 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4.... - Dutch Defense (0)
          • A93 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. b3 - Dutch Defense: Stonewall Variation, Botvinnik Variation (0)
        • A94 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4.... - Dutch Defense (0)
          • A94 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. b3 c6 8. Ba3 - Dutch Defense: Stonewall Variation (0)
        • A95 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. Nc3 c6 - Dutch Defense: Stonewall Variation (0)
        • A96 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 - Dutch Defense: Classical Variation (0)
        • A97 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8 - Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation (0)
        • A98 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4.... - Dutch Defense (0)
          • A98 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8 8. Qc2 - Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Alatortsev-Lisitsyn Line (0)
        • A99 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4.... - Dutch Defense (0)
          • A99 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8 8. b3 - Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Modern Main Line (0)
    • SÉRIE B 1.e4 2.... (661)
      • B00 - 1. e4 - King's Pawn Game (13)
        • B00 - 1. d4 d6 2. e4 g6 3. Nf3 Nf6 4. Bd3 (1)
        • B00 - 1. e4 b6 2. - Owen Defense (2)
        • B00 - 1. e4 d6 2. d4 c6 3. Nc3 Qc7 (1)
        • B00 - 1. e4 d6 2. d4 c6 3. Nf3 (2)
        • B00 - 1. e4 d6 2. d4 Nf6 - Pirc Defense (3)
          • B00 - 1. e4 d6 2. d4 Nf6 3. Bd3 - Pirc Defense (1)
          • B00 - 1. e4 d6 2. d4 Nf6 3. Nc3 e5 (2)
        • B00 - 1. e4 d6 2. g3 - Pirc Defense (1)
        • B00 - 1. e4 Nc6 2. Nf3 - Nimzowitsch Defense: Declined Variation (1)
      • B00 - 1. Nf3 Nc6 (1)
      • B01 - 1. e4 d5 - Scandinavian Defense (9)
        • B01 - 1. e4 d5 2. b4 - Scandinavian Defense: Zilbermints Gambit (0)
        • B01 - 1. e4 d5 2. exd5 c6 - Scandinavian Defense: Blackburne-Kloosterboer Gambit (0)
          • B01 - 1. e4 d5 2. exd5 c6 3. dxc6 e5 - Scandinavian Defense: Kloosterboer Gambit (0)
          • B01 - 1. e4 d5 2. exd5 c6 3. dxc6 Nxc6 - Scandinavian Defense: Blackburne Gambit (0)
        • B01 - 1. e4 d5 2. exd5 e5 3. dxe6 Bxe6 - Scandinavian Defense: Boehnke Gambit (0)
        • B01 - 1. e4 d5 2. exd5 Nf6 - Scandinavian Defense: Modern Variation (0)
          • B01 - 1. e4 d5 2. exd5 Nf6 3. c4 c6 - Scandinavian Defense: Panov Transfer (0)
          • B01 - 1. e4 d5 2. exd5 Nf6 3. c4 e6 - Scandinavian Defense: Icelandic-Palme Gambit (0)
          • B01 - 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 - Scandinavian Defense: Portuguese Gambit (0)
            • B01 - 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Bb5+ c6 - Scandinavian Defense: Portuguese Gambit, Elbow Variation (0)
            • B01 - 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Bb5+ Nbd7 5. Be2 - Scandinavian Defense: Portuguese Gambit, Lusophobe Variation (0)
            • B01 - 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Be2 - Scandinavian Defense: Portuguese Gambit, Wuss Variation (0)
            • B01 - 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. f3 Bf5 5. Bb5+ Nbd7 6. c4 - Scandinavian Defense: Portuguese Gambit, Jadoul Variation (0)
            • B01 - 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. f3 Bf5 5. Bb5+ Nbd7 6. Nc3 - Scandinavian Defense: Portuguese Gambit, Melbourne Shuffle Variation (0)
            • B01 - 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. f3 Bf5 5. c4 - Scandinavian Defense: Portuguese Gambit, Banker Variation (0)
            • B01 - 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. f3 Bf5 5. g4 - Scandinavian Defense: Portuguese Gambit, Correspondence Refutation (0)
            • B01 - 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Nf3 - Scandinavian Defense: Portuguese Gambit, Classical Variation (0)
          • B01 - 1. e4 d5 2. exd5 Nf6 3. d4 c6 4. dxc6 e5 - Scandinavian Defense: Kádas Gambit (0)
          • B01 - 1. e4 d5 2. exd5 Nf6 3. d4 g6 4. c4 b5 - Scandinavian Defense: Modern Variation, Wing Gambit (0)
          • B01 - 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 - Scandinavian Defense: Marshall Variation (0)
            • B01 - 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb4 - Scandinavian Defense: Kiel Variation (0)
            • B01 - 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 Bg4 - Scandinavian Defense: Modern Variation, Gipslis Variation (0)
            • B01 - 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 g6 - Scandinavian Defense: Richter Variation (0)
        • B01 - 1. e4 d5 2. exd5 Qxd5 - Scandinavian Defense: Mieses-Kotroc Variation (9)
          • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 - Scandinavian Defense: Main Line (3)
            • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. b4 - Scandinavian Defense: Main Line, Leonhardt Gambit (0)
            • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 - Scandinavian Defense: Main Line (3)
              • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Bf5 - Scandinavian Defense: Main Line (1)
              • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 - Scandinavian Defense: Anderssen Counterattack (0)
                • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. dxe5 Nc6 6. Nf3 Bb4 7. Bd2 - Scandinavian Defense: Anderssen Counterattack, Orthodox Attack (0)
                • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. Nf3 - Scandinavian Defense: Anderssen Counterattack, Goteborg System (0)
                  • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. Nf3 Bg4 - Scandinavian Defense: Anderssen Counterattack, Collijn Variation (0)
              • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 - Scandinavian Defense: Main Line, Mieses Variation (2)
                • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Bc4 - Scandinavian Defense: Main Line, Mieses Variation (1)
                • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 - Scandinavian Defense: Main Line, Mieses Variation (1)
                  • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 - Scandinavian Defense: Classical Variation (0)
                    • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 6. Ne5 c6 7. g4 - Scandinavian Defense: Grünfeld Variation (0)
                  • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bg4 6. h3 - Scandinavian Defense: Lasker Variation (0)
                  • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 g6 - Scandinavian Defense: Main Line, Mieses Variation (1)
          • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 - Scandinavian Defense: Gubinsky-Melts Defense (4)
            • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 - Scandinavian Defense: Gubinsky-Melts Defense (3)
              • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 c6 - Scandinavian Defense: Schiller-Pytel Variation (0)
              • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 - Scandinavian Defense: Gubinsky-Melts Defense (3)
                • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Bc4 c6 6. Nge2 Bf5 7. Bf4 Qb4 - Scandinavian Defense: Schiller-Pytel Variation, Modern Variation (0)
                • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3 a6 - Scandinavian Defense: Bronstein Variation (2)
            • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. g3 - Scandinavian Defense: Gubinsky-Melts Defense (1)
          • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 - Scandinavian Defense: Valencian Variation (0)
            • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. Nf3 Bg4 - Scandinavian Defense: Valencian Variation, Main Line (0)
            • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. Nf3 c6 - Scandinavian Defense: Valencian Variation, Ilundain Variation (0)
          • B01 - 1. e4 d5 2. exd5 Qxd5 3. Nf3 - Scandinavian Defense: Mieses-Kotroc Variation (2)
        • B01 - 1. e4 d5 2. Nc3 dxe4 3. Nxe4 e5 - Van Geet Opening: Grünfeld Defense (0)
      • B02 - 1. e4 Nf6 - Alekhine Defense (0)
        • B02 - 1. e4 Nf6 2. Bc4 - Alekhine Defense: Krejcik Variation (0)
          • B02 - 1. e4 Nf6 2. Bc4 Nxe4 3. Bxf7+ - Alekhine Defense: Krejcik Variation, Krejcik Gambit (0)
        • B02 - 1. e4 Nf6 2. d3 - Alekhine Defense: Maróczy Variation (0)
        • B02 - 1. e4 Nf6 2. e5 Nd5 - Alekhine Defense: Normal Variation (0)
          • B02 - 1. e4 Nf6 2. e5 Nd5 3. b3 - Alekhine Defense: Welling Variation (0)
          • B02 - 1. e4 Nf6 2. e5 Nd5 3. Bc4 Nb6 4. Bb3 c5 5. d3 - Alekhine Defense: Kmoch Variation (0)
          • B02 - 1. e4 Nf6 2. e5 Nd5 3. c4 - Alekhine Defense: Two Pawns Attack (0)
            • B02 - 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. a4 - Alekhine Defense: Two Pawns Attack, Tate Variation (0)
            • B02 - 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. b3 - Alekhine Defense: Steiner Variation (0)
            • B02 - 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 - Alekhine Defense: Two Pawns Attack, Lasker Variation (0)
              • B02 - 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 - Alekhine Defense: Hunt Variation, Lasker Simul Gambit (0)
                • B02 - 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6 - Alekhine Defense: Two Pawns Attack, Mikenas Variation (0)
                  • B02 - 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6 7. Nxd5 exd5 8. Bxd5 - Alekhine Defense: Hunt Variation, Mikenas Gambit (0)
              • B02 - 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Nc3 Nxc3 6. dxc3 d6 7. Bg5 - Alekhine Defense: Hunt Variation, Matsukevich Gambit (0)
            • B02 - 1. e4 Nf6 2. e5 Nd5 3. c4 Nf4 - Alekhine Defense: The Squirrel (0)
          • B02 - 1. e4 Nf6 2. e5 Nd5 3. Na3 - Alekhine Defense: Buckley Attack (0)
          • B02 - 1. e4 Nf6 2. e5 Nd5 3. Nc3 - Alekhine Defense: Sämisch Attack (0)
        • B02 - 1. e4 Nf6 2. e5 Ne4 - Alekhine Defense: Mokele Mbembe (0)
          • B02 - 1. e4 Nf6 2. e5 Ne4 3. d4 e6 - Alekhine Defense: Mokele Mbembe, Vavra Defense (0)
          • B02 - 1. e4 Nf6 2. e5 Ne4 3. d4 f6 - Alekhine Defense: Mokele Mbembe, Modern Line (0)
        • B02 - 1. e4 Nf6 2. e5 Ng8 - Alekhine Defense: Brooklyn Variation (0)
          • B02 - 1. e4 Nf6 2. e5 Ng8 3. d4 f5 - Alekhine Defense: Brooklyn Variation, Everglades Variation (0)
        • B02 - 1. e4 Nf6 2. Nc3 d5 - Alekhine Defense: Scandinavian Variation (0)
          • B02 - 1. e4 Nf6 2. Nc3 d5 3. d3 dxe4 4. Bg5 - Alekhine Defense: Scandinavian Variation, Myers Gambit (0)
          • B02 - 1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. e6 - Alekhine Defense: Spielmann Gambit (0)
          • B02 - 1. e4 Nf6 2. Nc3 d5 3. exd5 c6 - Alekhine Defense: Scandinavian Variation, Geschev Gambit (0)
      • B03 - 1. e4 Nf6 2. e5 Nd5 3. d4 - Alekhine Defense (4)
        • B03 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Bc4 - Alekhine Defense: Balogh Variation (1)
        • B03 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 - Alekhine Defense: Four Pawns Attack (3)
          • B03 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 - Alekhine Defense: Four Pawns Attack (3)
            • B03 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 - Alekhine Defense: Four Pawns Attack (3)
              • B03 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Bf5 - Alekhine Defense: Four Pawns Attack (1)
              • B03 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 - Alekhine Defense: Four Pawns Attack, Main Line (2)
      • B04 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4.... - Alekhine Defense (5)
        • B04 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 - Alekhine Defense: Modern Variation (5)
          • B04 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 - Alekhine Defense: Modern Variation, Larsen Variation (5)
          • B04 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 - Alekhine Defense: Modern Variation, Alburt Variation (0)
            • B04 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. a4 - Alekhine Defense: Modern Variation, Keres Variation (0)
          • B04 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nb6 - Alekhine Defense: Modern Variation, Schmid Variation (0)
          • B04 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nc6 - Alekhine Defense: Modern Variation, Larsen-Haakert Variation (0)
      • B05 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4.... - Alekhine Defense (0)
        • B05 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 - Alekhine Defense: Modern Variation, Main Line (0)
          • B05 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 c6 - Alekhine Defense: Modern Variation, Flohr Variation (0)
          • B05 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4 - Alekhine Defense: Modern Variation, Alekhine Variation (0)
            • B05 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4 Nb6 6. d5 - Alekhine Defense: Modern Variation, Vitolins Attack (0)
          • B05 - 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. h3 - Alekhine Defense: Modern Variation, Panov Variation (0)
      • B06 - 1. e4 g6 - Modern Defense (8)
        • B06 - 1. e4 g6 2. d4 Bg7 3. Nc3 a6 (1)
        • B06 - 1. e4 g6 2. d4 Bg7 3. Nc3 d6 - Modern Defense: Standard Defense (4)
          • B06 - 1. d4 g6 2. e4 Bg7 3. Nc3 d6 4. Bg5 h6 - Modern Defense: Standard Defense (1)
          • B06 - 1. e4 g6 2. d4 d6 3. Nc3 Bg7 4. Be3 - Modern Defense: Standard Defense (3)
            • B06 - 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 Nd7 (1)
            • B06 - 1. e4 g6 2. d4 d6 3. Nc3 Bg7 4. Be3 a6 - Modern Defense: Standard Defense (2)
              • B06 - 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. g4 (1)
              • B06 - 1. e4 g6 2. d4 d6 3. Nc3 Bg7 4. Be3 a6 5. Nf3 - Modern Defense: Standard Defense (1)
        • B06 - 1. e4 g6 2. d4 Bg7 3. Nf3 (2)
        • B06 - 1. e4 g6 2. d4 d6 3. Nc3 c6 - Rat Defense: Accelerated Gurgenidze (1)
      • B07-B09 1. e4 d6 2. d4 Nf6 3. Nc3 Pirc defence (7)
        • 1. e4 d6 2. d4 Nf6 3. Bd3 e5 - 1. e4 d6 2. d4 Nf6 3. Bd3 e5 - Pirc Defense (0)
        • B07 - 1. d4 g6 2. Nf3 Bg7 3. e4 d6 4. c3 Nf6 - Modern Defense: Geller's System (1)
        • B07 1. e4 d6 2. d4 Nf6 3. Nc3 Pirc defence (1)
          • B07 - 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. Qd2 - Pirc Defense: 150 Attack (1)
        • B08 - 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 - Pirc Defense: Classical Variation (5)
          • B08 - 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 - Pirc Defense: Classical Variation (5)
            • B08 - 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Bc4 - Pirc Defense: Classical Variation (1)
            • B08 - 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 - Pirc Defense: Classical Variation, Quiet System (3)
              • B08 - 1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. Nf3 Nf6 5. Be2 O-O - Pirc Defense: Classical Variation, Quiet System (3)
                • B08 - 1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. Nf3 Nf6 5. Be2 O-O 6. Be3 - Pirc Defense: Classical Variation, Quiet System (1)
                • B08 - 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O Nc6 - Pirc Defense: Classical Variation, Quiet System, Chigorin Line (2)
            • B08 - 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Bg5 - Pirc Defense: Classical Variation (1)
        • B09 - 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 - Pirc Defense: Austrian Attack (0)
      • B10 - B19 1. e4 c6 Caro-Kann defence (90)
        • B10 - 1. e4 c6 - Caro-Kann Defense (19)
          • B10 - 1. e4 c6 2. Nc3 d5 3. Nf3 - Caro-Kann Defense: Two Knights Attack (7)
          • B10 - 1. e4 c6 2. Nf3 - Caro-Kann Defense (19)
            • B10 - 1. e4 c6 2. Nf3 d5 3. d3 - Caro-Kann Defense: Endgame Offer (11)
        • B11 - 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 - Caro-Kann Defense (5)
        • B12 - 1. e4 c6 2. d4 - Caro-Kann Defense (36)
          • B12 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. c4 - Caro-Kann Defense: Advance Variation (1)
          • B12 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. g4 (2)
          • B12 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 - Caro-Kann Defense: Advance Variation, Tal Variation (4)
          • B12 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nd2 (5)
          • B12 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 - Caro-Kann Defense: Advance Variation, Short Variation (14)
            • B12 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 (13)
              • B12 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 a5 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 (3)
              • B12 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 a6 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 (2)
              • B12 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 c5 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 (1)
              • B12 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 h6 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 (1)
              • B12 - 1. e4 c6 2. Nf3 d5 3. e5 Bf5 4. d4 e6 5. Be2 Ne7 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 (6)
            • B12 - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. c3 (1)
          • B12 - 1. e4 c6 2. d4 d5 3. e5 c5 - Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense (7)
          • B12 - 1. e4 c6 2. d4 d5 3. f3 (1)
          • B12 - 1. e4 c6 2. d4 d6 - Caro-Kann defence (2)
        • B13 - 1. e4 c6 2. d4 d5 3. exd5 - Caro-Kann Defense: Exchange Variation (17)
          • B13 - 1. e4 c6 2. d4 d5 3. exd5 - Caro-Kann Defense: Exchange Variation (17)
            • B13 - 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 (12)
              • B13 - 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 - Caro-Kann Defense: Exchange Variation (9)
                • B13 - 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 - Caro-Kann Defense: Exchange Variation (9)
                  • B13 - 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 - Caro-Kann Defense: Exchange Variation, Rubinstein Variation (2)
              • B13 - 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 - Caro-Kann Defense: Exchange Variation (3)
            • B13 - 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 (5)
        • B14 - 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 - Caro-Kann Defense: Panov Attack (2)
          • B14 - 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 - Caro-Kann Defense: Panov Attack, Main Line (1)
          • B14 - 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 - Caro-Kann Defense: Panov Attack, Fianchetto Defense (1)
        • B15 - 1. e4 c6 2. d4 d5 3. Nc3 - Caro-Kann Defense (6)
          • B15 - 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 - Caro-Kann Defense: Tartakower Variation (6)
        • B16 - 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4.... - Caro-Kann Defense (0)
        • B17 - 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 - Caro-Kann Defense: Karpov Variation (1)
        • B18 - 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 - Caro-Kann Defense: Classical Variation (2)
          • B18 - 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 - Caro-Kann Defense: Classical Variation, Main Line (2)
        • B19 - 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 - Caro-Kann Defense: Classical Variation (2)
          • B19 - 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 - Caro-Kann Defense: Classical Variation, Spassky Variation (2)
      • B20 - B99 - 1. e4 c5 - Sicilian Defense (526)
        • B20 - 1. e4 c5 - Sicilian Defense (0)
          • B20 - 1. e4 c5 2. a3 - Sicilian Defense: Mengarini Variation (0)
          • B20 - 1. e4 c5 2. a4 - Sicilian Defense: Myers Attack, with a4 (0)
          • B20 - 1. e4 c5 2. b3 - Sicilian Defense: Snyder Variation (0)
            • B20 - 1. e4 c5 2. b3 b6 - Sicilian Defense: Snyder Variation, Queen Fianchetto Variation (0)
            • B20 - 1. e4 c5 2. b3 d5 3. Bb2 - Sicilian Defense: Euwe Attack, Prins Gambit (0)
          • B20 - 1. e4 c5 2. b4 - Sicilian Defense: Wing Gambit (0)
            • B20 - 1. e4 c5 2. b4 cxb4 3. a3 - Sicilian Defense: Wing Gambit, Marshall Variation (0)
              • B20 - 1. e4 c5 2. b4 cxb4 3. a3 bxa3 - Sicilian Defense: Wing Gambit, Carlsbad Variation (0)
              • B20 - 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Bb2 - Sicilian Defense: Wing Gambit, Marienbad Variation (0)
              • B20 - 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. Bb2 Nc6 7. c4 Qe6 - Sicilian Defense: Wing Gambit, Romanian Defense (0)
              • B20 - 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. c4 Qe6 7. Bd3 - Sicilian Defense: Wing Gambit, Nanu Gambit (0)
            • B20 - 1. e4 c5 2. b4 cxb4 3. Bb2 - Sicilian Defense: Wing Gambit, Abrahams Variation (0)
            • B20 - 1. e4 c5 2. b4 cxb4 3. c4 - Sicilian Defense: Wing Gambit, Santasiere Variation (0)
          • B20 - 1. e4 c5 2. Bc4 - Sicilian Defense: Bowdler Attack (0)
          • B20 - 1. e4 c5 2. c4 - Sicilian Defense: Staunton-Cochrane Variation (0)
            • B20 - 1. e4 c5 2. c4 d6 3. Nc3 Nc6 4. g3 h5 - Sicilian Defense: Gloria Variation (0)
          • B20 - 1. e4 c5 2. d3 Nc6 3. c3 d6 4. f4 - Sicilian Defense: Big Clamp Formation (0)
          • B20 - 1. e4 c5 2. g3 - Sicilian Defense: Lasker-Dunne Attack (0)
          • B20 - 1. e4 c5 2. g4 - Sicilian Defense: Grob Variation (0)
          • B20 - 1. e4 c5 2. h4 - Sicilian Defense: Myers Attack, with h4 (0)
          • B20 - 1. e4 c5 2. Ke2 - Sicilian Defense: King David's Opening (0)
          • B20 - 1. e4 c5 2. Na3 - Sicilian Defense: Kronberger Variation (0)
            • B20 - 1. e4 c5 2. Na3 Nc6 3. d4 cxd4 4. Bc4 - Sicilian Defense: Kronberger Variation, Nemeth Gambit (0)
          • B20 - 1. e4 c5 2. Ne2 - Sicilian Defense: Keres Variation (0)
          • B20 - 1. e4 c5 2. Nh3 - Sicilian Defense: Brick Variation (0)
          • B20 - 1. e4 c5 2. Qg4 - Sicilian Defense: Amazon Attack (0)
        • B21 - 1. e4 c5 2. d4 - Sicilian Defense: Smith-Morra Gambit (3)
        • B21 - 1. e4 c5 2. f4 d5 3. Bb5 Bd7 4. Bxd7 Qxd7 - Sicilian Defense: McDonnell Attack (3)
        • B22 - 1. e4 c5 2. c3 - Sicilian Defense: Alapin Variation (23)
          • B22 - 1. e4 c5 2. c3 d5 3. exd5 Qxd5 - Sicilian Defense: Alapin Variation, Barmen Defense (7)
          • B22 - 1. e4 c5 2. c3 e5 - Sicilian Defense: Alapin Variation (2)
          • B22 - 1. e4 c5 2. c3 Nf6 - Sicilian (14)
            • B22 - 1. e4 c5 2. c3 Nf6 3. d3 - Sicilian (1)
            • B22 - 1. e4 c5 2. c3 Nf6 3. e5 - Sicilian (13)
              • B22 - 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Bc4 - Sicilian (6)
              • B22 - 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 - Sicilian (2)
              • B22 - 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. g3 - Sicilian (1)
              • B22 - 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 - Sicilian (4)
        • B22 - 1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 - Sicilian Defense: Delayed Alapin Variation (5)
        • B22 - 1. e4 c5 2. Nf3 Nc6 3. c3 (2)
        • B23 - 1. e4 c5 2. Nc3 - Sicilian Defense (14)
          • B23 - 1. e4 c5 2. Nc3 d6 - Sicilian Defense: Closed (5)
          • B23 - 1. e4 c5 2. Nc3 e6 - Sicilian Defense: Closed (3)
          • B23 - 1. e4 c5 2. Nc3 Nc6 - Sicilian Defense: Closed, Traditional (6)
        • B23 - 1. e4 c5 2. Ne2 (1)
        • B24 - 1. e4 c5 2. Nc3 Nc6 3. g3 - Sicilian Defense: Closed, Fianchetto Variation (0)
        • B25 - 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4.... - Sicilian Defense (0)
          • B25 - 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 - Sicilian Defense: Closed (0)
            • B25 - 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e5 - Sicilian Defense: Closed, Botvinnik Defense, with f4 (0)
              • B25 - 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e5 7. Nh3 Nge7 - Sicilian Defense: Closed, Botvinnik Defense, Edge Variation (0)
            • B25 - 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 e5 - Sicilian Defense: Closed, Botvinnik Defense, with Nge2 (0)
        • B26 - 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4.... - Sicilian Defense (0)
          • B26 - 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 - Sicilian Defense: Closed (0)
        • B27 - 1. e4 c5 2. Nf3 - Sicilian Defense (9)
          • B27 - 1. e4 c5 2. Nf3 b5 - Sicilian Defense: Polish Gambit (0)
          • B27 - 1. e4 c5 2. Nf3 b6 - Sicilian Defense: Katalimov Variation (0)
          • B27 - 1. e4 c5 2. Nf3 e5 - Sicilian Defense: Jalalabad Variation (0)
          • B27 - 1. e4 c5 2. Nf3 f5 - Sicilian Defense: Brussels Gambit (0)
            • B27 - 1. e4 c5 2. Nf3 f5 3. exf5 Nh6 - Sicilian Defense: Double-Dutch Gambit (0)
          • B27 - 1. e4 c5 2. Nf3 g6 - Sicilian Defense: Hyperaccelerated Dragon (9)
            • B27 - 1. e4 c5 2. Nf3 g6 3. Bc4 - Sicilian Defense: Hyperaccelerated Dragon (2)
            • B27 - 1. e4 c5 2. Nf3 g6 3. c3 - Sicilian Defense: Hyperaccelerated Dragon (5)
              • B27 - 1. e4 c5 2. Nf3 g6 3. c3 Bg7 - Sicilian Defense: Hyperaccelerated Dragon (1)
                • B27 - 1. e4 c5 2. Nf3 g6 3. c3 Bg7 4. d4 Qa5 - Pterodactyl Defense: Western, Pterodactyl (0)
              • B27 - 1. e4 c5 2. Nf3 g6 3. c3 d5 - Sicilian Defense: Hyperaccelerated Dragon (4)
            • B27 - 1. e4 c5 2. Nf3 g6 3. c4 Bh6 - Sicilian Defense: Acton Extension (0)
            • B27 - 1. e4 c5 2. Nf3 g6 3. d4 - Sicilian Defense: Hyperaccelerated Fianchetto (2)
              • B27 - 1. e4 c5 2. Nf3 g6 3. d4 Bg7 - Sicilian Defense: Hyperaccelerated Pterodactyl (0)
                • B27 - 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ - Pterodactyl Defense: Western, Rhamphorhynchus (0)
                  • B27 - 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3 - Pterodactyl Defense: Sicilian, Rhamphorhynchus (0)
                    • B27 - 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3 Bxc3+ 6. bxc3 - Pterodactyl Defense: Sicilian, Pteranodon (0)
                      • B27 - 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3 Bxc3+ 6. bxc3 Qxc3+ - Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation (0)
                • B27 - 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 - Modern Defense: Pterodactyl Variation (0)
                  • B27 - 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. Bd2 - Pterodactyl Defense: Sicilian, Unpin (0)
                  • B27 - 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. Be3 - Pterodactyl Defense: Sicilian, Anhanguera (0)
                  • B27 - 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. d5 - Pterodactyl Defense: Sicilian, Benoni Gambit (0)
              • B27 - 1. e4 c5 2. Nf3 g6 3. d4 cxd4 - Sicilian Defense: Hyperaccelerated Fianchetto (2)
              • B27 - 1. e4 c5 2. Nf3 g6 3. d4 f5 - Sicilian Defense: Frederico Variation (0)
          • B27 - 1. e4 c5 2. Nf3 h6 - Sicilian Defense: Bücker Variation (0)
          • B27 - 1. e4 c5 2. Nf3 Qa5 - Sicilian Defense: Mongoose Variation (0)
          • B27 - 1. e4 c5 2. Nf3 Qc7 - Sicilian Defense: Quinteros Variation (0)
        • B28 - 1. e4 c5 2. Nf3 a6 - Sicilian Defense: O'Kelly Variation (2)
        • B29 - 1. e4 c5 2. Nf3 Nf6 - Sicilian Defense: Nimzowitsch Variation (1)
          • B29 - 1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 Nxc3 - Sicilian Defense: Nimzowitsch Variation, Exchange Variation (1)
        • B30 - B39 1.e4 c5 2. Nf3 Nc6 Sicilian defence (121)
          • B30 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 d6 7. Bf4 - Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation (0)
          • B30 - 1. e4 c5 2. Nf3 Nc6 - Sicilian Defense: Old Sicilian (73)
            • B30 - 1. e4 c5 2. Nf3 Nc6 3. b4 - Sicilian Defense: Portsmouth Gambit (0)
            • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 - Sicilian Defense: Nyezhmetdinov-Rossolimo Attack (63)
              • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 (11)
              • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e5 (3)
              • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 (23)
                • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. Bxc6 bxc6 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 (4)
                • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. c3 d5 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 (1)
                • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nd4 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 (1)
                • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 (17)
                  • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. c3 a6 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 (2)
                  • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. d4 cxd4 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 (4)
                  • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. Nc3 Ng6 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 (1)
                  • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. Re1 a6 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 (3)
                  • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. Re1 b6 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 (3)
                  • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. Re1 h6 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 (2)
                  • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. Re1 Nd4 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 (1)
                  • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. Re1 Ng6 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 (1)
              • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 h6 (3)
              • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 Na5 4. b4 - Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit (0)
              • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 Nb8 - Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Brooklyn Retreat Defense (0)
              • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 Nf6 (16)
                • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 Nf6 4. Bxc6 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 Nf6 (8)
                • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 Nf6 (8)
            • B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 - Sicilian Defense: Nyezhmetdinov-Rossolimo Attack (53)
            • B30 - 1. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4.... - Sicilian Defense (3)
              • B30 - 1. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 d6 - Sicilian Defense: Closed, Anti-Sveshnikov Variation, with d6 (3)
                • B30 - 1. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 d6 6. Nd2 Bg5 - Sicilian Defense: Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line (0)
              • B30 - 1. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 Nf6 - Sicilian Defense: Closed, Anti-Sveshnikov Variation, with Nf6 (0)
          • B31 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 - Sicilian Defense (22)
            • B31 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 - Sicilian Defense (5)
            • B31 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. c3 - Sicilian Defense (1)
            • B31 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O - Sicilian Defense (16)
              • B31 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Bxc6 - Sicilian Defense (1)
              • B31 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 - Sicilian Defense (4)
              • B31 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. d3 - Sicilian Defense (3)
              • B31 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. h3 - Sicilian Defense (1)
              • B31 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 - Sicilian Defense (7)
          • B32 - 1. e4 c5 2. Nf3 Nc6 3. d4 - Sicilian Defense: Open (3)
            • B32 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (3)
              • B32 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 a6 5. c4 e5 - Sicilian Defense: O'Kelly Variation, Maróczy Bind, Geller Line (0)
              • B32 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 - Sicilian Defense: Nimzo-American Variation (0)
              • B32 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 - Sicilian Defense: Löwenthal Variation (3)
                • B32 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 - Sicilian Defense: Kalashnikov Variation (3)
              • B32 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 - Sicilian Defense: Accelerated Dragon (0)
              • B32 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6 - Sicilian Defense: Godiva Variation (0)
              • B32 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 - Sicilian Defense: Flohr Variation (0)
              • Sicilian Defense: Kalashnikov Variation (0)
            • B32 - 1. e4 c5 2. Nf3 Nc6 3. d4 e6 - Sicilian Defense: Franco-Sicilian Variation (0)
          • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (21)
            • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 - Sicilian Defense: Open (18)
              • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 - Sicilian Defense: Lasker-Pelikan Variation (16)
                • B33 - 1. e4 c5 2. Ne2 Nc6 3. Nbc3 Nf6 4. d4 cxd4 5. Nxd4 e5 6. Ndb5 d6 7. Nd5 (7)
                • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 - Sicilian Defense: Lasker-Pelikan Variation, Schlechter Variation (0)
                • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 - Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation (9)
                  • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 Bg7 - Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Novosibirsk Varia (0)
                  • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 - Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation (1)
                    • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Bxb5 - Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Peresypki (0)
                    • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. c3 - Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation (1)
                  • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 - Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation (4)
                  • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nab1 - Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation (1)
                  • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 - Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation (7)
                • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 Be6 - Sicilian Defense: Lasker-Pelikan Variation, Bird Variation (0)
                • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nf3 - Sicilian Defense: Lasker-Pelikan Variation, Retreat Variation (0)
                • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nxc6 - Sicilian Defense: Lasker-Pelikan Variation, Exchange Variation (0)
              • B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bc5 - Sicilian Defense: Four Knights Variation, Cobra Variation (2)
          • B34 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (1)
            • B34 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 - Sicilian Defense: Accelerated Dragon, Modern Variation (1)
            • B34 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 - Sicilian Defense: Accelerated Dragon, Exchange Variation (0)
          • B35 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (3)
            • B35 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 - Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation (3)
              • B35 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 d6 - Sicilian Defense: Dragon Variation, Modern Bc4 Variation (0)
            • Sicilian (0)
          • B36 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (3)
            • B36 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 - Sicilian Defense: Accelerated Dragon, Maróczy Bind (3)
              • B36 - 1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. e4 Nf6 - Sicilian Defense: Accelerated Dragon, Maróczy Bind (3)
                • B36 - 1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. e4 Nf6 6. Nc3 - Sicilian Defense: Accelerated Dragon, Maróczy Bind (1)
                  • B36 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 Nxd4 7. Qxd4 d6 - Sicilian Defense: Accelerated Dragon, Maróczy Bind, Gurgenidze Variation (2)
          • B37 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B37 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 - Sicilian Defense: Accelerated Dragon, Maróczy Bind (0)
              • B37 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Nc2 d6 7. Be2 Nh6 - Sicilian Defense: Accelerated Dragon, Simagin Variation (0)
          • B38 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (4)
            • B38 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 - Sicilian Defense: Accelerated Dragon, Maróczy Bind (4)
          • B39 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B39 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 - Sicilian Defense: Accelerated Dragon, Maróczy Bind, Breyer Variation (0)
        • B40 - B49 1. e4 c5 2. Nf3 e6 Sicilian defence (78)
          • B40 - 1. e4 c5 2. Nf3 e6 - Sicilian Defense: French Variation (44)
            • B40 - 1. e4 c5 2. Nf3 e6 3. b3 - Sicilian Defense: French Variation, Westerinen Attack (4)
            • B40 - 1. e4 c5 2. Nf3 e6 3. b4 - Sicilian Defense: Wing Gambit Deferred (0)
            • B40 - 1. e4 c5 2. Nf3 e6 3. Be2 - Sicilian Defense: French Variation (3)
            • B40 - 1. e4 c5 2. Nf3 e6 3. c3 - Sicilian Defense: Delayed Alapin Variation, with e6 (32)
              • B40 - 1. e4 c5 2. Nf3 e6 3. c3 Nf6 4.... - Sicilian Defense (32)
                • B40 - 1. e4 c5 2. Nf3 e6 3. c3 Nf6 4. e5 Nd5 5. d4 Nc6 - Sicilian Defense: Alapin Variation, Sherzer Variation (0)
            • B40 - 1. e4 c5 2. Nf3 e6 3. c3 - Sicilian Defense: Delayed Alapin Variation, with e6 (1)
            • B40 - 1. e4 c5 2. Nf3 e6 3. c4 - Sicilian Defense: Kramnik Variation (0)
            • B40 - 1. e4 c5 2. Nf3 e6 3. d3 - Sicilian Defense: French Variation (8)
            • B40 - 1. e4 c5 2. Nf3 e6 3. d4 a6 - Sicilian Defense: Drazic Variation (0)
            • B40 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 - Sicilian Defense: French Variation, Open (4)
              • B40 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. c3 - Sicilian Defense: Smith-Morra Gambit Deferred (0)
              • B40 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Bc5 - Sicilian Defense: Paulsen-Basman Defense (0)
              • B40 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 - Sicilian Defense: French Variation, Normal (4)
                • B40 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 - Sicilian Defense: Pin Variation (3)
                  • B40 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd3 e5 - Sicilian Defense: Pin Variation, Jaffe Variation (0)
                  • B40 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5 - Sicilian Defense: Pin Variation, Koch Variation (3)
                • B40 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Qd3 - Sicilian Defense: Four Knights Variation (0)
                • B40 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Qb6 - Sicilian Defense: Gaw-Paw Variation (0)
              • B40 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Qb6 - Sicilian Defense: Kveinis Variation (0)
            • B40 - 1. e4 c5 2. Nf3 e6 3. d4 d5 - Sicilian Defense: Marshall Counterattack (0)
            • B40 - 1. e4 c5 2. Nf3 e6 3. g3 - Sicilian Defense: French Variation (7)
            • B40 - 1. e4 c5 2. Nf3 e6 3. h3 - Sicilian Defense: French Variation (1)
            • B40 - 1. e4 c5 2. Nf3 e6 3. Nc3 - Sicilian Defense: French Variation (1)
              • B40 - 1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. g3 b5 5. d4 cxd4 6. Nxd4 - Sicilian Defense: Kan Variation, Wing Attack, Fianchetto Variation (1)
          • B40 - 1. e4 c5 2. Nf3 e6 - Sicilian Defense: French Variation (33)
          • B41 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense (4)
            • B41 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 - Sicilian Defense: Kan Variation (3)
              • B41 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. a3 - Sicilian Defense: Kan Variation (1)
              • B41 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 - Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation (2)
                • B41 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 g6 - Sicilian Defense: Kan Variation, Maróczy Bind, Hedgehog Variation (1)
                • B41 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 - Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation (1)
                  • B41 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 - Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation (1)
                    • B41 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Nc6 - Sicilian Defense: Kan Variation, Maróczy Bind, Bronstein Variation (0)
                      • B41 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Nc6 8. Bc2 - Sicilian Defense: Kan Variation, Maróczy Bind, Bronstein Variation (0)
                    • B41 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Qc7 - Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation (1)
            • B41 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Qxd4 - Sicilian Defense (1)
          • B42 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense (2)
            • B42 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 - Sicilian Defense: Kan Variation, Modern Variation (2)
              • B42 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 - Sicilian Defense: Kan Variation, Polugaevsky Variation (0)
              • B42 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 g6 - Sicilian Defense: Kan Variation, Swiss Cheese Variation (0)
              • B42 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 - Sicilian Defense: Kan Variation, Modern Variation (1)
                • B42 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. O-O - Sicilian Defense: Kan Variation, Modern Variation (1)
                  • B42 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. O-O d6 7. c4 g6 - Sicilian Defense: Kan Variation, Gipslis Variation (0)
              • B42 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 - Sicilian Defense: Kan Variation (1)
          • B43 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense (1)
            • B43 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 - Sicilian Defense: Kan Variation, Knight Variation (1)
              • B43 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 - Sicilian Defense: Kan Variation, Wing Attack (1)
                • B43 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 - Sicilian Defense: Kan Variation, Wing Attack (1)
                  • B43 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Bb7 - Sicilian Defense: Kan Variation, Wing Attack (1)
                  • B43 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Be3 Bc5 8. Qg4 - Sicilian Defense: Kan Variation, Wing Attack, Christiansen's Dream (0)
                  • B43 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nf3 - Sicilian Defense: Kan Variation, Wing Attack, Spraggett Attack (0)
          • B44 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 - Sicilian Defense: Taimanov Variation (1)
          • B45 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense (19)
            • B45 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 - Sicilian Defense: Taimanov Variation (19)
              • B45 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Bc5 - Sicilian Defense: Taimanov Variation (1)
              • B45 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 - Sicilian Defense: Four Knights Variation (18)
                • B45 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 Bb4 7. Nd6+ - Sicilian Defense: Four Knights Variation, American Attack (0)
                • B45 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Qd3 - Sicilian Defense: Four Knights Variation (3)
                • B45 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. a3 - Sicilian Defense: Four Knights Variation (7)
                • B45 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 - Sicilian Defense: Four Knights Variation, Exchange Variation (8)
                  • B45 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 - Sicilian Defense: Four Knights Variation, Exchange Variation (8)
          • B46 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense (1)
            • B46 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 - Sicilian Defense: Taimanov Variation (1)
          • B47 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 - Sicilian Defense: Taimanov Variation, Bastrikov Variation (6)
            • B47 - 1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Qc7 6. g3 - Sicilian Defense: Taimanov Variation, Bastrikov Variation (1)
            • B47 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. g4 - Sicilian Defense: Taimanov Variation, Bastrikov Variation (1)
            • B47 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Ncb5 - Sicilian Defense: Taimanov Variation (1)
            • B47 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Ndb5 Qb8 7. Be3 a6 8. Bb6 - Sicilian Defense: Taimanov Variation, Bastrikov Variation, Ponomariov Gambit (0)
            • B47 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Qd3 - Sicilian Defense: Taimanov Variation, Bastrikov Variation (1)
            • B47 - 1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. d4 cxd4 5. Nxd4 Qc7 6. Be2 - Sicilian Defense: Taimanov Variation, Bastrikov Variation (2)
          • B48 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense (5)
            • B48 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 - Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack (5)
          • B49 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B49 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2 - Sicilian Defense: Taimanov Variation, Bastrikov Variation (0)
        • B50-B59 Sicilian 1. e4 c5 2. Nf3 d6 (123)
          • B50 - 1. e4 c5 2. Nf3 d6 - Sicilian Defense: Modern Variations (42)
            • B50 - 1. e4 c5 2. Nf3 d6 3. b4 - Sicilian Defense: Wing Gambit, Deferred Variation (2)
            • B50 - 1. e4 c5 2. Nf3 d6 3. Bc4 - Sicilian Defense: Modern Variations (17)
              • B50 - 1. e4 c5 2. Nf3 d6 3. Bc4 e6 - Sicilian Defense: Modern Variations (1)
              • B50 - 1. e4 c5 2. Nf3 d6 3. Bc4 Nc6 - Sicilian Defense: Modern Variations (1)
              • B50 - 1. e4 c5 2. Nf3 d6 3. Bc4 Nf6 - Sicilian Defense: Modern Variations (15)
            • B50 - 1. e4 c5 2. Nf3 d6 3. Bc4 - Sicilian Defense: Modern Variations (12)
            • B50 - 1. e4 c5 2. Nf3 d6 3. c3 - Sicilian Defense: Delayed Alapin Variation, with d6 (11)
              • B50 - 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 - Sicilian Defense: Delayed Alapin Variation, with d6 (8)
              • B50 - 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. h3 - Sicilian Defense: Delayed Alapin Variation, with d6 (3)
            • B50 - 1. e4 c5 2. Nf3 d6 3. h3 - Sicilian Defense: Modern Variations (1)
            • B50 - 1. e4 c5 2. Nf3 d6 3. Nc3 - Sicilian Defense: Modern Variations (11)
              • B50 - 1. e4 c5 2. Nf3 d6 3. Nc3 a6 - Sicilian Defense: Modern Variations (2)
              • B50 - 1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 - Sicilian Defense: Modern Variations (9)
          • B51 - 1. e4 c5 2. Nf3 d6 3. Bb5+ - Sicilian Defense: Moscow Variation (29)
            • B51 - 1. e4 c5 2. Nf3 d6 3. Bb5 Nc6 - Sicilian Defense: Moscow Variation (1)
            • B51 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. a4 - Sicilian Defense: Moscow Variation (4)
            • B51 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. Ba4 - Sicilian Defense: Moscow Variation (5)
            • B51 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. c3 - Sicilian Defense: Moscow Variation (2)
            • B51 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. c4 - Sicilian Defense: Moscow Variation (2)
            • B51 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 - Sicilian Defense: Moscow Variation (9)
            • B51 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. O-O - Sicilian Defense: Moscow Variation (6)
          • B52 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 - Sicilian Defense: Moscow Variation, Main Line (29)
            • B52 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bc4 - Sicilian Defense: Moscow Variation, Main Line (2)
            • B52 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Be2 - Sicilian Defense: Moscow Variation, Main Line (1)
            • B52 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ - Sicilian Defense: Moscow Variation, Main Line (19)
              • B52 - 1. e4 c5 2. Nf3 d6 3. Bb5 Bd7 4. Bxd7 Nxd7 (8)
              • B52 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 - Sicilian Defense: Moscow Variation, Sokolsky Variation (5)
              • B52 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O - Sicilian Defense: Moscow Variation, Main Line (6)
                • B52 - 1. e4 c5 2. Nf3 d6 3. Bb5 Bd7 4. Bxd7 Qxd7 5. O-O Nc6 - Sicilian Defense: Moscow Variation, Main Line (3)
                  • B52 - 1. e4 c5 2. Nf3 d6 3. Bb5 Bd7 4. Bxd7 Qxd7 5. O-O Nc6 6. c3 - Sicilian Defense: Moscow Variation, Main Line (3)
                    • B52 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. c3 Nf6 7. d4 - Sicilian Defense: Moscow Variation, Haag Gambit (1)
                • B52 - 1. e4 c5 2. Nf3 d6 3. Bb5 Bd7 4. Bxd7 Qxd7 5. O-O Nf6 - Sicilian Defense: Moscow Variation, Main Line (3)
            • B52 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. c4 - Sicilian Defense: Moscow Variation, Main Line (7)
          • B53 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (6)
            • B53 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 - Sicilian Defense: Chekhover Variation (6)
              • B53 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 - Sicilian Defense: Chekhover Variation (2)
                • B53 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 - Sicilian Defense: Chekhover Variation (2)
                  • B53 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Qd7 - Sicilian Defense: Chekhover Variation, Zaitsev Defense (0)
              • B53 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nf6 - Sicilian Defense: Chekhover Variation (4)
          • B54 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (10)
            • B54 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 g6 - Sicilian Defense: Dragon Variation, Accelerated Dragon (0)
            • B54 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 - Sicilian Defense: Modern Variations, Main Line (10)
              • B54 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Bc4 - Sicilian Defense: Modern Variations, Ginsberg Gambit (3)
              • B54 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 - Sicilian Defense: Modern Variations, Main Line (2)
              • B54 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 - Sicilian Defense: Prins Variation (5)
          • B55 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B55 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Bb5+ - Sicilian Defense: Prins Variation, Venice Attack (0)
          • B56 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (4)
            • B56 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bd7 - Sicilian Defense: Kupreichik Variation (0)
            • B56 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Bb5+ - Sicilian Defense: Venice Attack (2)
            • B56 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 - Sicilian Defense: Classical Variation (2)
              • B56 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bb5 - Sicilian Defense: Classical Variation (1)
              • B56 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 - Sicilian Defense: Classical Variation, Fianchetto Variation (0)
              • B56 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bd3 - Sicilian Defense: Yates Variation (0)
              • B56 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f3 - Sicilian Defense: Classical Variation (1)
              • B56 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Nde2 - Sicilian Defense: Spielmann Variation (0)
          • B57 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 - Sicilian Defense: Classical Variation, Sozin Attack (3)
            • B57 - 1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. Bc4 Nc6 5. d4 cxd4 6. Nxd4 Na5 - Sicilian Defense: Classical Variation, Sozin Attack (1)
            • B57 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 g6 7. Nxc6 bxc6 8. e5 - Sicilian Defense: Magnus Smith Trap (0)
            • B57 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Qb6 - Sicilian Defense: Classical Variation, Anti-Sozin Variation (2)
          • B57 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (0)
          • B58 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B58 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 - Sicilian Defense: Classical Variation (0)
              • B58 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 - Sicilian Defense: Boleslavsky Variation (0)
                • B58 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nxc6 - Sicilian Defense: Boleslavsky Variation, Louma Variation (0)
              • B58 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 Nxd4 7. Qxd4 g6 - Sicilian Defense: Classical Variation, Dragon Transfer (0)
          • B59 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B59 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 - Sicilian Defense: Boleslavsky Variation (0)
        • B60-B69 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Sicilian, Richter-Rauzer (12)
          • B60 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (2)
            • B60 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 - Sicilian Defense: Richter-Rauzer Variation (2)
              • B60 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Bd7 - Sicilian Defense: Richter-Rauzer Variation, Modern Variation (2)
              • B60 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 g6 - Sicilian Defense: Richter-Rauzer Variation, Dragon Variation (0)
          • B61 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B61 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Bd7 7. Qd2 - Sicilian Defense: Richter-Rauzer Variation, Modern Variation (0)
          • B62 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (1)
            • B62 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 - Sicilian Defense: Richter-Rauzer Variation (1)
              • B62 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Bb5 - Sicilian Defense: Richter-Rauzer Variation, Vitolins Variation (0)
              • B62 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Nxc6 - Sicilian Defense: Richter-Rauzer Variation, Exchange Variation (0)
              • B62 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd3 - Sicilian Defense: Richter-Rauzer Variation (1)
              • B62 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Nb3 - Sicilian Defense: Richter-Rauzer Variation, Podebrady Variation (0)
          • B63 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 - Sicilian Defense: Richter-Rauzer Variation, Traditional Variation (1)
          • B64 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B64 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 e5 - Sicilian Defense: Richter-Rauzer Variation, Classical Variation (0)
          • B65 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B65 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 Nxd4 - Sicilian Defense: Richter-Rauzer Variation, Rauzer Attack (0)
              • B65 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 Nxd4 10. Qxd4 - Sicilian Defense: Richter-Rauzer Variation, Classical Variation (0)
          • B66 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (3)
            • B66 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 - Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations (3)
          • B67 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (4)
            • B67 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 - Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation (4)
          • B68 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B68 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 - Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation (0)
          • B69 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (1)
            • B69 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 10. Nf3 b5 11. Bxf6 - Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdi (1)
        • B70-B79 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 Sicilian, dragon variation (9)
          • B70 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 - Sicilian Defense: Dragon Variation (2)
          • B71 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 - Sicilian Defense: Dragon Variation, Levenfish Variation (0)
          • B72 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 - Sicilian Defense: Dragon Variation (2)
          • B72 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. Qd2 O-O 9. O-O-O - Sicilian Defense: Dragon Variation, Classical Variation, Grigoriev Variation (1)
          • B73 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O Nc6 8. Be3 - Sicilian Defense: Dragon Variation, Classical Variation (1)
          • B74 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Nb3 - Sicilian Defense: Dragon Variation, Classical Variation, Normal Line (0)
          • B75 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 - Sicilian Defense: Dragon Variation, Yugoslav Attack, Early Deviations (0)
          • B76 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. O-O-O - Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line (2)
          • B76 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O - Sicilian Defense: Dragon Variation, Yugoslav Attack (1)
          • B77 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 - Sicilian Defense: Dragon Variation, Yugoslav Attack (0)
          • B78 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. O-O-O - Sicilian Defense: Dragon Variation, Yugoslav Attack (0)
          • B79 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. h4 Qa5 11. O-O-O Rfc8 12. Bb3 - Sicilian Defense: Dragon Variation, Yugoslav Attack (0)
        • B80-B85 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 Sicilian, Scheveningen variation (7)
          • B80 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. Qd2 - Sicilian Defense: Scheveningen Variation, English Attack, with Qd2 (0)
          • B80 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B80 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 - Sicilian Defense: Scheveningen Variation (0)
              • B80 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bb5+ - Sicilian Defense: Scheveningen Variation, Vitolins Variation (0)
              • B80 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 - Sicilian Defense: Scheveningen Variation, Fianchetto Variation (0)
          • B81 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense (1)
            • B81 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 - Sicilian Defense: Scheveningen Variation, Keres Attack (1)
          • B82 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B82 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f4 - Sicilian Defense: Scheveningen Variation, Matanovic Attack (0)
              • B82 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f4 Nc6 7. Be3 Be7 8. Qf3 - Sicilian Defense: Scheveningen Variation, Tal Variation (0)
          • B83 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense (1)
            • B83 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. Be2 Nf6 - Sicilian Defense: Scheveningen Variation, Modern Variation (0)
            • B83 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 - Sicilian Defense: Scheveningen Variation, Classical Variation (1)
              • B83 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Be7 7. O-O O-O 8. f4 Nc6 9. Be3 - Sicilian Defense: Scheveningen Variation, Modern Variation (1)
          • B84 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (1)
            • B84 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 - Sicilian Defense: Scheveningen Variation, Classical Variation (1)
              • B84 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. Be3 - Sicilian Defense: Scheveningen Variation, Classical Variation (1)
              • B84 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O Nbd7 - Sicilian Defense: Najdorf Variation, Scheveningen Variation (0)
          • B85 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e6 7. Be2 Qc7 8. O-O Nc6 - Sicilian Defense: Scheveningen Variation, Classical Variation, Paulsen Variation (0)
          • B85 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense (1)
            • B85 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 Be7 9. f4 d6 10. Qe1 O-O - Sicilian Defense: Scheveningen Variation, Classical Main Line (1)
          • B86 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B86 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 - Sicilian Defense: Sozin Attack (0)
          • B87 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B87 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 - Sicilian Defense: Sozin Attack, Flank Variation (0)
          • B88 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B88 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 - Sicilian Defense: Sozin Attack, Leonhardt Variation (0)
              • B88 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Bb3 Be7 8. Be3 O-O 9. f4 - Sicilian Defense: Sozin Attack, Fischer Variation (0)
          • B89 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 - Sicilian Defense: Sozin Attack, Main Line (3)
        • B90-B99 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 Sicilian, Najdorf (117)
          • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (76)
            • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 - Sicilian Defense: Najdorf Variation (76)
              • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a3 - Sicilian Defense: Najdorf Variation (2)
              • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 - Sicilian Defense: Najdorf Variation (2)
              • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 - Sicilian Defense: Najdorf Variation, Lipnitsky Attack (9)
              • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bd3 - Sicilian Defense: Najdorf Variation (13)
                • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bd3 e5 - Sicilian Defense: Najdorf Variation (9)
                • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bd3 g6 - Sicilian Defense: Najdorf Variation (3)
                • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bd3 Nc6 - Sicilian Defense: Najdorf Variation (1)
              • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 - Sicilian Defense: Najdorf Variation, English Attack (18)
                • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 - Sicilian Defense: Najdorf Variation, English Attack (12)
                  • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 - Sicilian Defense: Najdorf Variation, English Attack (5)
                  • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 - Sicilian Defense: Najdorf Variation, English Attack (7)
                • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 - Sicilian Defense: Najdorf Variation, English Attack (2)
                • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 - Sicilian Defense: Scheveningen Variation, English Attack, with f3 (0)
                • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. g4 - Sicilian Defense: Scheveningen Variation, Delayed Keres Attack (0)
                  • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. g4 e5 8. Nf5 g6 9. g5 - Sicilian Defense: Scheveningen Variation, Delayed Keres Attack, Perenyi Gambit (0)
                • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 - Sicilian Defense: Najdorf Variation, English Attack, Anti-English (4)
              • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 - Sicilian Defense: Najdorf Variation (4)
              • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g4 - Sicilian Defense: Najdorf Variation, Dekker Gambit (0)
              • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 - Sicilian Defense: Najdorf Variation, Adams Attack (15)
                • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 g6 - Sicilian Defense: Najdorf Variation, Adams Attack (1)
                • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 Nc6 - Sicilian Defense: Najdorf Variation, Adams Attack (1)
                • B90 - 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. h3 e5 - Sicilian Defense: Najdorf Variation, Adams Attack (9)
                • B90 - 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. h3 e6 - Sicilian Defense: Najdorf Variation, Adams Attack (4)
              • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Nb3 - Sicilian Defense: Najdorf Variation (7)
              • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Qd3 (5)
              • B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Rg1 - Sicilian Defense: Najdorf Variation, Freak Attack (1)
            • Sicilian (0)
          • B91 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (11)
            • B91 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 - Sicilian Defense: Najdorf Variation, Zagreb Variation (11)
          • B92 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 - Sicilian Defense: Najdorf Variation, Opocensky Variation (15)
            • B92 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. Be3 - Sicilian Defense: Najdorf Variation, Opocensky Variation (7)
            • B92 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. h4 - Sicilian Defense: Najdorf Variation, Opocensky Variation (1)
            • B92 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O - Sicilian Defense: Najdorf Variation, Opocensky Variation (6)
              • B92 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O - Sicilian Defense: Najdorf Variation, Opocensky Variation, Traditional Line (6)
            • B92 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. Qd3 - Sicilian Defense: Najdorf Variation, Opocensky Variation (1)
          • B93 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (3)
            • B93 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 - Sicilian Defense: Najdorf Variation, Amsterdam Variation (3)
          • B94 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 - Sicilian Defense: Najdorf Variation (2)
          • B95 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (7)
            • B95 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 - Sicilian Defense: Najdorf Variation (7)
          • B96 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (2)
            • B96 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 - Sicilian Defense: Najdorf Variation (2)
              • B96 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 b5 - Sicilian Defense: Najdorf Variation, Polugaevsky Variation (0)
                • B96 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 b5 8. e5 dxe5 9. fxe5 Qc7 10. Qe2 - Sicilian Defense: Najdorf Variation, Polugaevsky Variation, Simagin Line (0)
              • B96 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 - Sicilian Defense: Najdorf Variation (1)
              • B96 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nc6 - Sicilian Defense: Najdorf Variation, Neo-Classical Defense (0)
              • B96 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qc7 - Sicilian Defense: Najdorf Variation (1)
          • B97 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (1)
            • B97 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 - Sicilian Defense: Najdorf Variation, Poisoned Pawn Variation (1)
              • B97 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 - Sicilian Defense: Najdorf Variation, Poisoned Pawn Accepted (1)
          • B98 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B98 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 - Sicilian Defense: Najdorf Variation (0)
              • B98 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 h6 9. Bh4 g5 - Sicilian Defense: Najdorf Variation, Goteborg Variation (0)
              • B98 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 h6 9. Bh4 Qc7 - Sicilian Defense: Najdorf Variation, Browne Variation (0)
              • B98 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 - Sicilian Defense: Najdorf Variation, Traditional Line (0)
          • B99 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (0)
            • B99 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. O-O-O Nbd7 - Sicilian Defense: Najdorf Variation, Main Line (0)
    • SÉRIE C (962)
      • C00-C19 1. e4 e6 French defence (104)
        • C00 - 1. e4 e6 - French Defense (7)
          • C00 - 1. e4 e6 2. c4 - French Defense: Steiner Variation (2)
          • C00 - 1. e4 e6 2. d3 - French Defense: King's Indian Attack (1)
          • C00 - 1. e4 e6 2. d4 d5 3. Bd3 - French Defense: Schlechter Variation (1)
          • C00 - 1. e4 e6 2. Nf3 d5 3. Nc3 - French Defense: Two Knights Variation (2)
          • C00 - 1. e4 e6 2. Qe2 - French Defense: Chigorin Variation (1)
        • C01 - 1. e4 e6 2. d4 d5 3. exd5 - French Defense: Exchange Variation (16)
          • C01 - 1. e4 e6 2. d4 d5 3. exd5 - French Defense: Exchange Variation (1)
          • C01 - 1. e4 e6 2. d4 d5 3. exd5 exd5 4. h3 - French Defense: Exchange Variation (1)
          • C01 - 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 - French Defense: Exchange Variation (8)
          • C01 sdfgsdfg- 1. e4 e6 2. d4 d5 3. exd5 - French Defense (6)
        • C02 - 1. e4 e6 2. d4 d5 3. e5 - French Defense: Advance Variation (22)
          • C02 - 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 - French Defense: Advance Variation, Euwe Variation (9)
          • C02 - 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Nge7 (2)
          • C02 - 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 - French Defense: Advance Variation, Main Line (5)
            • C02 - 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 Bd7 - French Defense: Advance Variation (1)
            • C02 - 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 Nh6 - French Defense: Advance Variation, Lputian Variation (4)
          • C02 - 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a4 (1)
          • C02 - 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 (1)
          • C02 - 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 (1)
          • C02 - 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. g3 (2)
          • C02 - 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qa5 (1)
        • C03 - 1. e4 e6 2. d4 d5 3. Nd2 - French Defense: Tarrasch Variation (1)
        • C04 - 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 - French Defense: Tarrasch Variation, Guimard Defense, Main Line (0)
        • C05 - 1. e4 e6 2. d4 d5 3. Nd2 Nf6 - French Defense: Tarrasch Variation, Closed Variation (1)
        • C06 - 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 - French Defense: Tarrasch Variation, Closed Variation, Main Line (0)
        • C07 - 1. e4 e6 2. d4 d5 3. Nd2 c5 - French Defense: Tarrasch Variation, Open System (9)
          • C07 - 1. e4 e6 2. d4 d5 3. Nd2 c5 4. dxc5 - French Defense: Tarrasch Variation, Open System (2)
          • C07 - 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 - French Defense: Tarrasch Variation, Chistyakov Defense (1)
          • C07 - 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 - French Defense: Tarrasch Variation, Open System, Euwe-Keres Line (6)
        • C08 - 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 - French Defense: Tarrasch Variation, Open System (0)
        • C09 - 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 - French Defense: Tarrasch Variation, Open System, Main Line (0)
        • C10 - 1. e4 e6 2. d4 d5 3. Nc3 - French Defense: Paulsen Variation (5)
        • C11 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 - French Defense (31)
          • C11 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 - French Defense: Classical Variation, Burn Variation (4)
          • C11 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 - French Defense: Classical Variation, Steinitz Variation (27)
            • C11 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 - French Defense: Classical Variation (27)
              • C11 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 - French Defense: Classical Variation (23)
                • C11 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 - French Defense: Steinitz Variation (22)
                  • C11 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Be7 - French Defense: Steinitz Variation (2)
                  • C11 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 - French Defense: Steinitz Variation (20)
                    • C11 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Bd3 - French Defense: Steinitz Variation (1)
                    • C11 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 - French Defense: Steinitz Variation, Boleslavsky Variation (19)
                      • C11 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 a6 - French Defense: Steinitz Variation, Boleslavsky Variation (7)
                      • C11 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Be7 - French Defense: Steinitz Variation, Boleslavsky Variation (4)
                      • C11 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 cxd4 - French Defense: Steinitz Variation, Boleslavsky Variation (7)
                      • C11 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Qc7 - French Defense: Steinitz Variation, Boleslavsky Variation (1)
              • C11 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Nce2 - French Defense: Classical Variation, Shirov-Anand Variation (4)
        • C12 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 - French Defense: McCutcheon Variation (1)
        • C13 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 - French Defense: Classical Variation, Normal Variation (0)
        • C13 - 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 - French Defense: Classical Variation (1)
        • C14 - 1. e4 e6 2. d4 d5 3. Nc3 a6 4. Nf3 Nf6 5. e5 Nfd7 6. Bg5 - French Defense: Classical Variation (0)
        • C15 - 1. e4 e6 2. d4 d5 3. Nc3 Bb4 - French Defense: Winawer Variation (2)
          • C15 - 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 - French Defense: Winawer Variation (1)
          • C15 - 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 - French Defense: Winawer Variation, Delayed Exchange Variation (1)
        • C16 - 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 - French Defense: Winawer Variation, Advance Variation (0)
        • C17 - 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 - French Defense: Winawer Variation, Advance Variation (5)
        • C18 - 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 - French Defense: Winawer Variation, Advance Variation (2)
        • C19 - 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3 6. bxc3 Ne7 7. h4 (0)
        • C19 - 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 - French Defense: Winawer Variation, Positional Variation (0)
        • C19 - 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. a3 Bxc3 6. bxc3 c5 7. a4 (1)
      • C20-C29 King's pawn game 1. e4 e5 (51)
        • C20 - 1. e4 e5 - King's Pawn Game (10)
          • C20 - 1. e4 e5 2. d3 - King's Pawn Game: Leonardis Variation (10)
        • C21 - 1. e4 e5 2. d4 exd4 - Center Game Accepted (0)
        • C22 - 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qc4 - Center Game: Hall Variation (1)
          • C22 - 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Nf6 - Center Game: Berger Variation (1)
        • C23 - 1. e4 e5 2. Bc4 - Bishop's Opening (0)
        • C24 - 1. e4 e5 2. Bc4 Nf6 - Bishop's Opening (16)
          • C24 - 1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 - Bishop's Opening (1)
          • C24 - 1. e4 e5 2. Bc4 Nf6 3. d3 c6 - Bishop's Opening (10)
          • C24 - 1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 - Bishop's Opening (5)
            • C24 - 1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. a4 - Bishop's Opening: Berlin Defense (1)
            • C24 - 1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nc3 - Bishop's Opening: Vienna Hybrid (4)
        • C25 - 1. e4 e5 2. Nc3 - Vienna Game (7)
          • C25 - 1. e4 e5 2. Nc3 Nc6 - Vienna Game: Max Lange Defense (7)
            • C25 - 1. e4 e5 2. Nc3 Nc6 3. a3 - Vienna Game: Max Lange Defense (2)
            • C25 - 1. e4 e5 2. Nc3 Nc6 3. g3 - Vienna Game: Paulsen Variation (5)
        • C26 - 1. e4 e5 2. Bc4 Nf6 3. Nc3 (11)
          • C26 - 1. e4 e5 2. Bc4 Nf6 3. Nc3 Bb4 - Vienna Game: Stanley Variation, Reversed Spanish (1)
          • C26 - 1. e4 e5 2. Nc3 Nf6 3. a3 - Vienna Game: Mengarini Variation (2)
          • C26 - 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 - 1. e4 e5 2. Bc4 Nf6 3. Nc3 (5)
            • C26 - 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. d3 - Bishop's Opening: Vienna Hybrid, Spielmann Attack (4)
            • C26 - 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. Nge2 - Vienna Game: Stanley Variation (1)
          • C26 - 1. e4 e5 2. Nc3 Nf6 3. g3 - Vienna Game: Mieses Variation (3)
        • C26 - 1. e4 e5 2. Nc3 Nf6 3. d4 exd4 4. Qxd4 Nc6 - Vienna Game: Falkbeer Variation (4)
        • C27 - 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 - Vienna Game: Frankenstein-Dracula Variation (1)
        • C28 - 1. e4 e5 2. Nc3 Nc6 3. Bc4 Nf6 - Vienna Game: Stanley Variation, Three Knights Variation (0)
        • C29 - 1. e4 e5 2. Nc3 Nf6 3. f4 - Vienna Game: Vienna Gambit (1)
      • C30-C39 1. e4 e5 2. f4 King's gambit (1)
        • C30 - 1. e4 e5 2. f4 - King's Gambit (0)
        • C31 - 1. e4 e5 2. f4 d5 - King's Gambit Declined (0)
        • C32 - 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 - King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit Accepted (0)
        • C33 - 1. e4 e5 2. f4 exf4 - King's Gambit Accepted (0)
        • C34 - 1. e4 e5 2. f4 exf4 3. Nf3 d6 - King's Gambit Accepted: Fischer Defense (0)
        • C34 - 1. e4 e5 2. f4 exf4 3. Nf3 Nc6 - King's Gambit Accepted: MacLeod Defense (1)
        • C35 - 1. e4 e5 2. f4 exf4 3. Nf3 Be7 - King's Gambit Accepted (0)
        • C36 - 1. e4 e5 2. f4 exf4 3. Nf3 d5 - King's Gambit Accepted: Modern Defense (0)
        • C37 - 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 - King's Gambit Accepted: King's Knight's Gambit (0)
        • C38 - 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 - King's Gambit Accepted: Traditional Variation (0)
        • C39 - 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 - King's Gambit Accepted: King's Knight's Gambit (0)
      • C40-C49 King's knight opening (227)
        • 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. dxe5 - Petrov's Defense: Modern Attack (0)
        • C40 - 1. e4 e5 2. Nf3 Bc5 - King's Pawn Game: Busch-Gass Gambit (0)
        • C40 - 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 - Petrov's Defense: Modern Attack, Center Attack (0)
        • C41 - 1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 - Philidor Defense: Lion Variation (11)
        • C41 - 1. e4 e5 2. Nf3 d6 - Philidor Defense (4)
          • C41 - 1. e4 d6 2. d4 e5 3. Nf3 exd4 4. Nxd4 Nf6 - Philidor Defense: Exchange Variation (4)
          • C41 - 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Ng5 - Philidor Defense: Nimzowitsch, Locock Variation (0)
        • C42 – 1. e4 e5 2. Nf3 Nf6 – Petrov’s Defense xx (79)
          • C42 - 1. e4 e5 2. Nf3 Nf6 3....... - Petrov's Defense (79)
            • C42 - 1. e4 e5 2. Nf3 Nf6 3. d3 - Petrov's Defense (2)
            • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nc4 - Petrov's Defense: Paulsen Attack (7)
            • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nd3 (2)
            • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Bd3 - Petrov's Defense: Millennium Attack (9)
            • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. c4 - Petrov's Defense: Kaufmann Attack (1)
            • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 - Petrov's Defense: French Attack (4)
            • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 - Petrov's Defense: Classical Attack, Marshall Variation (16)
              • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. c5 - Petrov's Defense: Classical Attack, Marshall Variation (1)
              • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. Nc3 - Petrov's Defense: Classical Attack, Marshall Variation (3)
              • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. Qc2 - Petrov's Defense: Classical Attack, Marshall Variation (2)
              • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. Re1 - Petrov's Defense: Classical Attack, Marshall Variation (8)
              • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. Re1 Bf5 9. c4 - Petrov's Defense: Classical Attack, Marshall Variation (1)
              • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. Re1 Bf5 9. Nc3 - Petrov's Defense: Classical Attack, Marshall Variation (1)
            • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 - Petrov's Defense: Classical Attack (12)
              • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Bf5 - Petrov's Defense: Classical Attack (5)
              • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 - Petrov's Defense: Classical Attack (7)
            • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bf5 - Petrov's Defense: Classical Attack (5)
            • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 - Petrov's Defense: Classical Attack, Mason-Showalter Variation (5)
            • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 - Petrov's Defense: Nimzowitsch Attack (13)
              • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nf6 6. d4 Be7 7. Bf4 O-O - Petrov's Defense: Nimzowitsch Attack (1)
              • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nf6 6. d4 Be7 7. h3 O-O - Petrov's Defense: Nimzowitsch Attack (1)
              • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 Nc6 - Petrov's Defense: Nimzowitsch Attack (2)
              • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 Nd7 - Petrov's Defense: Nimzowitsch Attack (3)
              • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 O-O - Petrov's Defense: Nimzowitsch Attack (3)
              • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Bf4 Nc6 - Petrov's Defense: Nimzowitsch Attack (2)
              • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Bf4 O-O - Petrov's Defense: Nimzowitsch Attack (1)
            • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 - Petrov's Defense: Nimzowitsch Attack (1)
            • C42 - 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 (2)
        • C43 - 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4.... - Bishop's Opening (18)
        • C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 - Petrov's Defense: Modern Attack (22)
          • C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Ne4 - Petrov's Defense: Modern Attack, Center Attack (2)
          • C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 - Petrov's Defense: Modern Attack (20)
            • C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 - Petrov's Defense: Modern Attack, Center Variation (18)
              • C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. dxe5 Nc5 - Petrov's Defense: Modern Attack, Center Variation (1)
              • C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Bd6 - Petrov's Defense: Modern Attack, Center Variation (1)
              • C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 - Petrov's Defense: Modern Attack, Center Variation (15)
                • C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nc3 - Petrov's Defense: Modern Attack, Center Variation (4)
                • C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nxd7 - Petrov's Defense: Modern Attack, Center Variation (7)
                • C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. O-O - Petrov's Defense: Modern Attack, Center Variation (4)
              • C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 Nc6 5. Nxe5 Nxe5 - Petrov's Defense: Modern Attack, Center Variation (1)
            • C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. dxe5 - Petrov's Defense: Modern Attack (2)
        • C44 - 1. e4 e5 2. Nf3 Nc6 - King's Knight Opening: Normal Variation (20)
          • C44 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 - Scotch Game: Scotch Gambit, Advance Variation (1)
          • C44 - 1. e4 e5 2. Nf3 Nc6 3. Be2 - King's Pawn Game: Tayler Opening (7)
            • C44 - 1. e4 e5 2. Nf3 Nc6 3. Be2 Nf6 - King's Pawn Game: Tayler Opening (7)
              • C44 - 1. e4 e5 2. Nf3 Nc6 3. Be2 Nf6 4. d3 - King's Pawn Game: Tayler Opening (7)
                • C44 - 1. e4 e5 2. Nf3 Nc6 3. Be2 Nf6 4. d3 Bc5 - King's Pawn Game: Tayler Opening (2)
                • C44 - 1. e4 e5 2. Nf3 Nc6 3. Be2 Nf6 4. d3 d5 - King's Pawn Game: Tayler Opening (5)
                  • C44 - 1. e4 e5 2. Nf3 Nc6 3. Be2 Nf6 4. d3 d5 5. Nbd2 - King's Pawn Game: Tayler Opening, Inverted Hanham (3)
          • C44 - 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d3 d5 - Ponziani Opening: Jaenisch Counterattack (1)
          • C44 - 1. e4 e5 2. Nf3 Nc6 3. d3 (2)
          • C44 - 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. e5 - Scotch Game: Scotch Gambit, Advance Variation (1)
          • C44 - 1. e4 e5 2. Nf3 Nc6 3. g3 - King's Knight Opening: Konstantinopolsky (9)
        • C45 - 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4.... - Scotch Game (28)
          • C45 - 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 - Scotch Game (28)
            • C45 - 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 - Scotch Game (8)
              • C45 - 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 - Scotch Game: Classical Variation (5)
              • C45 - 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 - Scotch Game: Potter Variation (2)
              • C45 - 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 - Scotch Game: Classical Variation, Intermezzo Variation (1)
            • C45 - 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 - Scotch Game (16)
              • C45 - 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Nxc6 - Scotch Game (0)
              • C45 - 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Bd3 - Scotch Game (4)
              • C45 - 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 - Scotch Game (4)
              • C45 - 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Nd2 - Scotch Game (5)
              • C45 - 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Qe2 - Scotch Game (3)
            • C45 - 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qf6 - Scotch Game (4)
        • C46 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 - Three Knights Opening (2)
        • C47 - 1. e4 e5 2. Nc3 Nf6 3. g3 d5 4. exd5 Nxd5 - Four Knights Game: Glek System (2)
        • C47 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. ....Four knights, Scotch variation (49)
          • C47 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 - Four Knights Game: Italian Variation (0)
          • C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 - Four Knights Game (49)
            • C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3 - Four Knights Game: Gunsberg Variation (2)
            • C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 - Four Knights Game: Scotch Variation Accepted (20)
              • C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 - Four Knights Game: Scotch Variation Accepted (17)
                • C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 - Four Knights Game: Scotch Variation Accepted (10)
                  • C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 O-O 9. O-O - Four Knights Game: Scotch Variation Accepted, Main Line (9)
                • C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d6 - Four Knights Game: Scotch Variation Accepted (1)
                • C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 O-O - Four Knights Game: Scotch Variation Accepted (6)
              • C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bc5 6. Be3 - Four Knights Game: Scotch Variation Accepted (3)
            • C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 - Four Knights Game: Glek System (1)
            • C47 - 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Nd5 (1)
        • C48 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 - Four Knights Game: Spanish Variation (20)
          • C48 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bd6 - Four Knights Game: Spanish Variation (11)
          • C48 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 - Four Knights Game: Spanish Variation (8)
          • C48 - 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bc5 - Four Knights Game: Spanish Variation (1)
        • C49 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 - Four Knights Game: Spanish Variation, Double Spanish (8)
          • C49 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O - Four Knights Game: Spanish Variation, Double Spanish (8)
            • C49 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O Bxc3 - Four Knights Game: Spanish Variation, Double Spanish (1)
            • C49 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O - Four Knights Game: Spanish Variation, Double Spanish (7)
              • C49 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. Bxc6 - Four Knights Game: Spanish Variation, Nimzowitsch Variation (4)
              • C49 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 - Four Knights Game: Spanish Variation (2)
              • C49 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. Nd5 - Four Knights Game: Spanish Variation, Double Spanish (1)
      • C50-C59 1. e4 e5 2. Nf3 Nc6 3. Bc4 Italian Game (265)
        • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 - Italian Game (76)
          • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 - Italian Game: Giuoco Piano (70)
            • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 - Italian Game: Giuoco Pianissimo (56)
              • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 d6 - Italian Game: Giuoco Piano (9)
              • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 - Italian Game: Giuoco Pianissimo, Normal (47)
                • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. a3 - Italian Game: Giuoco Piano (1)
                • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. a4 - Italian Game: Giuoco Piano (1)
                • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Be3 - Italian Game: Giuoco Pianissimo, Normal (4)
                • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Be3 - Italian Game: Giuoco Piano (1)
                • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Bg5 - Italian Game: Giuoco Piano (10)
                • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. h3 - Italian Game: Giuoco Pianissimo, Normal (1)
                • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. O-O - Italian Game: Giuoco Pianissimo, Normal (11)
                  • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. O-O d6 - Italian Game: Giuoco Pianissimo, Normal (8)
                  • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. O-O O-O - Italian Game: Giuoco Pianissimo, Normal (3)
                • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. O-O - Italian Game: Giuoco Piano (3)
                • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. a4 - Italian Game: Giuoco Pianissimo, Normal (2)
                • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. Nbd2 - Italian Game: Giuoco Pianissimo (1)
                • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. Nc3 - Italian Game: Giuoco Pianissimo, Italian Four Knights Variation (12)
            • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 - Italian Game: Giuoco Piano (5)
            • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O - Italian Game: Giuoco Piano (9)
          • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. - Italian Game: Paris Defense (5)
          • C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 - Italian Game: Giuoco Pianissimo, Normal (30)
          • C50 - 1. e4 Nc6 2. Nf3 e5 3. Bc4 Na5 4. Nxe5 Nxc4 - Italian Game (1)
        • C51 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 - Italian Game: Evans Gambit (0)
        • C52 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 - Italian Game: Evans Gambit, Main Line (0)
        • C53 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4.c3 - Italian Game (5)
        • C54 (1)
        • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 - Italian Game: Classical Variation, Giuoco Pianissimo (86)
          • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 - Italian Game: Classical Variation, Giuoco Pianissimo (82)
            • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 a5 - Italian Game: Classical Variation, Giuoco Pianissimo (5)
            • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 a6 - Italian Game: Classical Variation, Giuoco Pianissimo (6)
            • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 - Italian Game: Classical Variation, Giuoco Pianissimo (64)
              • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. b4 - Italian Game: Classical Variation, Giuoco Pianissimo (2)
              • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. Bg5 - Italian Game: Classical Variation, Giuoco Pianissimo (13)
              • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. Nbd2 - Italian Game: Classical Variation, Giuoco Pianissimo (2)
                • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. Nbd2 a6 - Italian Game: Classical Variation, Giuoco Pianissimo, with a6 (1)
                • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. Nbd2 O-O 7. O-O - Italian Game: Classical Variation, Giuoco Pianissimo (1)
              • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. O-O - Italian Game: Classical Variation, Giuoco Pianissimo (43)
                • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 d6 6. O-O a5 (8)
                • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 d6 6. O-O O-O (8)
                • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. O-O d6 6. c3 a6 (15)
                  • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 d6 6. c3 a6 7. a4 - Italian Game: Classical Variation, Giuoco Pianissimo (5)
                    • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 d6 6. c3 a6 7. a4 Ba7 - Italian Game: Classical Variation, Giuoco Pianissimo (3)
                    • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 d6 6. c3 a6 7. a4 O-O - Italian Game: Classical Variation, Giuoco Pianissimo (1)
                  • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 d6 6. c3 a6 7. Re1 - Italian Game: Classical Variation, Giuoco Pianissimo (1)
                • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. O-O d6 6. c3 h6 (12)
                  • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 d6 6. c3 h6 7. Nbd2 - Italian Game: Classical Variation, Giuoco Pianissimo (1)
                  • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 d6 6. c3 h6 7. Re1 - Italian Game: Classical Variation, Giuoco Pianissimo (4)
              • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 d6 6. a4 - Italian Game: Classical Variation, Giuoco Pianissimo (4)
            • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 h6 - Italian Game: Classical Variation, Giuoco Pianissimo (4)
            • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 O-O - Italian Game: Classical Variation, Giuoco Pianissimo (2)
            • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 h6 6. c3 - Italian Game: Classical Variation, Giuoco Pianissimo (1)
          • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 - Italian Game: Classical Variation, Center Attack (4)
        • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O d6 5. c3 Nf6 6. d3 (37)
        • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 - Italian Game: Classical Variation, Giuoco Pianissimo (1)
        • C54 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. Nbd2 (1)
        • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 - Italian Game (74)
          • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 - Italian Game: Two Knights Defense, Modern Bishop's Opening (74)
            • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 a6 - Italian Game: Two Knights Defense, Modern Bishop's Opening (2)
            • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 - Italian Game: Two Knights Defense, Modern Bishop's Opening (51)
              • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. Nbd2 - Italian Game: Two Knights Defense, Modern Bishop's Opening (1)
              • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. Nc3 - Italian Game: Two Knights Defense, Modern Bishop's Opening (11)
                • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. Nc3 d6 - Italian Game: Two Knights Defense, Modern Bishop's Opening (10)
                • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. Nc3 O-O - Italian Game: Two Knights Defense, Modern Bishop's Opening (1)
              • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O - Italian Game: Two Knights Defense, Modern Bishop's Opening (39)
                • C55 - 1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 Be7 5. O-O d6 6. a4 - Italian Game: Two Knights Defense, Modern Bishop's Opening (1)
                • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. a4 - Italian Game: Two Knights Defense, Modern Bishop's Opening (5)
                • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Bb3 - Italian Game: Two Knights Defense, Modern Bishop's Opening (2)
                • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. h3 - Italian Game: Two Knights Defense, Modern Bishop's Opening (1)
                • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Nbd2 - Italian Game: Two Knights Defense, Modern Bishop's Opening (3)
                • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Nc3 - Italian Game: Two Knights Defense, Modern Bishop's Opening (8)
                • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 - Italian Game: Two Knights Defense, Modern Bishop's Opening (19)
                  • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. a3 - Italian Game: Two Knights Defense, Modern Bishop's Opening (4)
                  • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. a4 - Italian Game: Two Knights Defense, Modern Bishop's Opening (14)
                    • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. a4 a5 - Italian Game: Two Knights Defense, Modern Bishop's Opening (2)
                    • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. a4 Be6 - Italian Game: Two Knights Defense, Modern Bishop's Opening (7)
                    • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. a4 Na5 - Italian Game: Two Knights Defense, Modern Bishop's Opening (5)
                  • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. c3 - Italian Game: Two Knights Defense, Modern Bishop's Opening (1)
            • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 d5 - Italian Game: Two Knights Defense, Modern Bishop's Opening (6)
            • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 - Italian Game: Two Knights Defense, Modern Bishop's Opening (15)
              • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. a3 - Italian Game: Two Knights Defense, Modern Bishop's Opening (1)
              • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. c3 - Italian Game: Two Knights Defense, Modern Bishop's Opening (8)
              • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. Nc3 - Italian Game: Two Knights Defense, Modern Bishop's Opening (1)
              • C55 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. O-O - Italian Game: Two Knights Defense, Modern Bishop's Opening (5)
        • C56 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 - Italian Game: Two Knights Defense, Open Variation (5)
          • C56 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 d6 - Italian Game: Scotch Invitation Declined (1)
          • C56 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. e5 d5 6. Bb5 Ne4 - Italian Game: Scotch Gambit, Max Lange Attack (4)
        • C57 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 - Italian Game: Two Knights Defense, (2)
        • C58 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 - Italian Game: Two Knights Defense, (15)
          • C58 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Bd3 - Italian Game: Two Knights Defense, (11)
          • C58 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 - Italian Game: Two Knights Defense, (4)
        • C59 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 - Italian Game: Two Knights Defense, Polerio Defense, Suhle Defense (1)
      • C60-C69 1. e4 e5 2. Nf3 Nc6 3. Bb5 Ruy Lopez (Spanish opening) (105)
        • C60 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 4. d4 exd4 - Ruy Lopez: Fianchetto Defense (1)
        • C60 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 - Ruy Lopez: Cozio Defense (1)
        • C61 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 - Ruy Lopez (0)
        • C62 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 - Ruy Lopez: Steinitz Defense (0)
        • C63 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 - Ruy Lopez (0)
        • C64 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 - Ruy Lopez: Classical Variation (7)
        • C64 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5 5. c3 O-O 6. d4 Bb6 - Ruy Lopez: Classical Defense, Benelux Variation (1)
        • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 - Ruy Lopez (48)
          • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 - Ruy Lopez: Berlin Defense (48)
            • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 - Ruy Lopez (38)
              • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Ba4 - Ruy Lopez (2)
              • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 - Ruy Lopez (17)
                • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 - Ruy Lopez (17)
                  • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. Be3 - Ruy Lopez (1)
                  • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. c3 - Ruy Lopez: Berlin Defense (1)
                  • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. h3 - Ruy Lopez (1)
                  • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. Nbd2 - Ruy Lopez (5)
                  • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. O-O - Ruy Lopez (8)
                  • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. Qe2 - Ruy Lopez (1)
              • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. c3 - Ruy Lopez (10)
              • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Nbd2 - Ruy Lopez (2)
              • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. O-O - Ruy Lopez (7)
            • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 - Ruy Lopez (8)
            • C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Ne7 - Ruy Lopez (2)
        • C66 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. Nc3 Nf6 6. O-O Be7 7. Re1 O-O - Ruy Lopez: Berlin Defense, Tarrasch Trap (0)
        • C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 - Ruy Lopez: Berlin Defense, Rio Gambit Accepted (43)
          • C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 - Ruy Lopez: Berlin Defense, l'Hermet Variation (20)
            • C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Ba4 - Ruy Lopez: Open Berlin Defense, Showalter Variation (1)
            • C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 - Ruy Lopez: Berlin Defense, Rio Gambit Accepted (16)
              • C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 9. h3 - Ruy Lopez: Berlin Defense, Rio Gambit Accepted (6)
              • C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 9. Nc3 - Ruy Lopez: Berlin Defense, Rio Gambit Accepted (10)
            • C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. dxe5 - Ruy Lopez: Open Berlin Defense, l'Hermet Variation (3)
          • C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 - Ruy Lopez: Berlin Defense, Rio Gambit Accepted (23)
            • C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. a4 - Ruy Lopez: Berlin Defense, Rio Gambit Accepted (6)
            • C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Bf1 - Ruy Lopez: Berlin Defense, Rio Gambit Accepted (1)
            • C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 - Ruy Lopez: Berlin Defense, Rio Gambit Accepted (16)
              • C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nf5 - Ruy Lopez: Berlin Defense, Rio Gambit Accepted (3)
              • C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nxe5 - Ruy Lopez: Berlin Defense, Rio Gambit Accepted (13)
                • C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nxe5 8. Rxe5 O-O 9. d4 - Ruy Lopez: Berlin Defense, Rio Gambit Accepted (9)
                • C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nxe5 8. Rxe5 O-O 9. Nc3 - Ruy Lopez: Berlin Defense, Rio Gambit Accepted (4)
        • C68 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 - Ruy Lopez: Exchange Variation (0)
        • C69 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O - Ruy Lopez: Exchange Variation, Normal Variation (4)
      • C70-C79 Ruy Lopez1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 ..... (96)
        • C70 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 - Ruy Lopez: Morphy Defense (21)
          • C70 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Na5 - Ruy Lopez: Morphy Defense, Norwegian Variation (1)
          • C70 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5 - Ruy Lopez: Morphy Defense, Classical Defense Deferred (8)
          • C70 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 f5 - Ruy Lopez: Morphy Defense, Schliemann Defense Deferred (1)
          • C70 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 g6 (1)
          • C70 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nge7 - Ruy Lopez: Morphy Defense, Cozio Defense (10)
        • C71 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 - Ruy Lopez: Morphy Defense, Modern Steinitz Defense (0)
        • C72 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O - Ruy Lopez: Morphy Defense, Modern Steinitz Defense (4)
        • C73 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 - Ruy Lopez: Morphy Defense, Modern Steinitz Defense (0)
        • C74 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 - Ruy Lopez: Morphy Defense, Modern Steinitz Defense (1)
        • C75 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 - Ruy Lopez: Morphy Defense, Modern Steinitz Defense (1)
        • C76 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 4. c3 a6 5. Ba4 d6 6. d4 Bd7 - Ruy Lopez: Morphy Defense, Modern Steinitz Defense, Fianchetto Variation (0)
        • C77 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 - Ruy Lopez (31)
          • C77 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 - Ruy Lopez: Morphy Defense, Anderssen Variation (22)
            • C77 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 - Ruy Lopez: Morphy Defense, Anderssen Variation (9)
            • C77 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 Bc5 - Ruy Lopez: Morphy Defense, Anderssen Variation (9)
            • C77 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 - Ruy Lopez: Morphy Defense, Anderssen Variation (4)
          • C77 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 - Ruy Lopez: Morphy Defense, Mackenzie Variation (2)
          • C77 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Nc3 - Ruy Lopez: Morphy Defense, Tarrasch Variation (4)
          • C77 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 (3)
        • C78 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O - Ruy Lopez: Morphy Defense (28)
          • C78 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 - Ruy Lopez: Morphy Defense (13)
          • C78 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 - Ruy Lopez: Morphy Defense (15)
            • C78 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 b5 - Ruy Lopez: Morphy Defense (10)
            • C78 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 O-O - Ruy Lopez: Morphy Defense (5)
        • C79 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 - Ruy Lopez: Morphy Defense, Steinitz Deferred (10)
      • C80-C89 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 & C84-C89 C84 5. O-O Be7 Ruy Lopez, closed defence (98)
        • C80 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 - Ruy Lopez: Open (11)
          • C80 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 - Ruy Lopez: Open (10)
            • C80 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 - Ruy Lopez: Open, Main Line (5)
              • C80 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Be3 - Ruy Lopez: Open, Main Line (2)
              • C80 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 - Ruy Lopez: Open, Bernstein Variation (3)
            • C80 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 Be7 - Ruy Lopez: Open (5)
          • C80 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. Re1 - Ruy Lopez: Open (1)
        • C81 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 - Ruy Lopez: Open, Howell Attack (1)
        • C82 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 - Ruy Lopez: Open (4)
          • C82 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O 11. Bc2 Nxf2 - Ruy Lopez: Open, Dilworth Variation (4)
        • C83 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 - Ruy Lopez: Open, Classical Defense (6)
        • C84 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 - Ruy Lopez: Closed (31)
          • C84 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. a3 - Ruy Lopez: Closed (8)
          • C84 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. a4 - Ruy Lopez: Closed (8)
          • C84 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. Bd2 - Ruy Lopez: Closed (1)
          • C84 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. c3 - Ruy Lopez: Closed (5)
          • C84 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 O-O 8. a4 - Ruy Lopez: Closed (2)
          • C84 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 O-O 8. Nc3 - Ruy Lopez: Closed (2)
          • C84 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 d6 7. c3 O-O 8. h3 - Ruy Lopez: Closed (2)
          • C84 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 d6 7. c3 O-O 8. Re1 - Ruy Lopez: Closed (3)
        • C84 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d4 exd4 5. O-O a6 6. Ba4 Be7 7. e5 Ne4 8. c3 (1)
        • C85 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6 - Ruy Lopez: Closed, Delayed Exchange (19)
          • C85 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6 dxc6 7. d3 - Ruy Lopez: Closed, Delayed Exchange (10)
          • C85 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6 dxc6 7. Nc3 - Ruy Lopez: Closed, Delayed Exchange (2)
          • C85 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6 dxc6 7. Re1 - Ruy Lopez: Closed, Delayed Exchange (7)
        • C86 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 - Ruy Lopez: Closed, Worrall Attack (0)
        • C87 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 d6 - Ruy Lopez: Closed, Averbakh Variation (0)
        • C88 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 - Ruy Lopez: Closed (22)
          • C88 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 - Ruy Lopez: Closed (1)
          • C88 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O - Ruy Lopez: Closed (21)
            • C88 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 - Ruy Lopez: Closed (13)
              • C88 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 b4 - Ruy Lopez: Closed (8)
              • C88 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 Bb7 - Ruy Lopez: Closed (3)
              • C88 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 Rb8 - Ruy Lopez: Closed (2)
            • C88 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. h3 - Ruy Lopez: Closed (8)
        • C89 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 - Ruy Lopez: Marshall Attack (3)
      • C90-C99 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 Ruy Lopez, closed (15)
        • C90 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O - Ruy Lopez: Closed (0)
        • C91 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 - Ruy Lopez: Closed, Yates Variation (0)
        • C92 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 - Ruy Lopez: Closed (8)
          • C92 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Bb7 - Ruy Lopez: Closed, Flohr System (4)
          • C92 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Be6 - Ruy Lopez: Closed, Kholmov Variation (1)
          • C92 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Re8 - Ruy Lopez: Closed, Zaitsev System (2)
          • C92 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Bd7 - Ruy Lopez: Closed (1)
        • C93 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 - Ruy Lopez: Closed, Smyslov Defense (2)
        • C94 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 - Ruy Lopez: Closed, Breyer Defense (0)
        • C95 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 - Ruy Lopez: Closed, Breyer (5)
          • C95 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 Nbd7 - Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid (5)
        • C96 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 - Ruy Lopez: Closed, Chigorin Defense (0)
        • C97 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 - Ruy Lopez: Closed, Chigorin Defense (0)
        • C98 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Nc6 - Ruy Lopez: Closed, Chigorin Defense (0)
        • C99 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 - Ruy Lopez: Closed, Chigorin Defense, Panov System (0)
    • SÉRIE D (573)
      • D00-D06 1. d4 d5 Queen's pawn game (106)
        • D00 - 1. d4 d5 - Queen's Pawn Game (7)
          • D00 - 1. d4 d5 2. Bf4 c5 - Queen's Pawn Game: Accelerated London System, Steinitz Countergambit (2)
          • D00 - 1. d4 d5 2. Bg5 - Queen's Pawn Game: Levitsky Attack (3)
          • D00 - 1. d4 d5 2. c3 - Queen's Pawn Game (2)
        • D01 - 1. d4 d5 2. Nc3 Nf6 3. Bf4 - Rapport-Jobava System (13)
          • D01 - 1. d4 d5 2. Nc3 Nf6 3. Bf4 a6 (1)
          • D01 - 1. d4 d5 2. Nc3 Nf6 3. Bf4 Bf5 (2)
          • D01 - 1. d4 d5 2. Nc3 Nf6 3. Bf4 c5 (5)
          • D01 - 1. d4 d5 2. Nc3 Nf6 3. Bf4 e6 (2)
          • D01 - 1. d4 Nf6 2. Nc3 d5 3. Bf4 c6 (1)
          • D01 - 1. d4 Nf6 2. Nc3 d5 3. Bf4 g6 (2)
        • D02 - 1. d4 d5 2. Nf3 - Queen's Pawn Game: Zukertort Variation (61)
          • D02 - 1. d4 d5 2. Nf3 c5 - Queen's Pawn Game: Krause Variation (1)
          • D02 - 1. d4 d5 2. Nf3 e6 3. Bf4 (2)
          • D02 - 1. d4 d5 2. Nf3 e6 3. c4 Nc6 4. Nc3 a6 5. cxd5 exd5 6. Bf4 (1)
          • D02 - 1. d4 d5 2. Nf3 Nf6 - Queen's Pawn Game: Symmetrical Variation (57)
            • D02 - 1. d4 d5 2. Nf3 Nf6 3. Bf4 - Queen's Pawn Game: London System (26)
              • D02 - 1. d4 d5 2. Nf3 Nf6 3. Bf4 Bf5 - Queen's Pawn Game: London System (4)
              • D02 - 1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 - Queen's Pawn Game: London System (17)
                • D02 - 1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. dxc5 - London System (1)
                • D02 - 1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 - London System (16)
                  • D02 - 1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 e6 5. Nbd2 - London System (2)
                  • D02 - 1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. Bb5 - London System (1)
                  • D02 - 1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Nc6 5. Be2 - London System (1)
                  • D02 - 1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Nc6 5. c3 - London System (2)
                  • D02 - 1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Nc6 5. Nbd2 - London System (10)
              • D02 - 1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 - Queen's Pawn Game: London System (5)
              • D02 - 1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4.... - London System (15)
            • D02 - 1. d4 d5 2. Nf3 Nf6 3. g3 - Queen's Pawn Game: Symmetrical Variation (8)
            • D02 - 1. d4 Nf6 2. Nf3 d5 3. c3 - Queen's Pawn Game: Symmetrical Variation (10)
            • D02 - 1. d4 Nf6 2. Nf3 d5 3. c4 - Queen's Pawn Game: Symmetrical Variation (13)
              • D02 - 1. d4 d5 2. Nf3 Nf6 3. c4 c6 - Queen's Pawn Game: Symmetrical Variation (1)
              • D02 - 1. d4 Nf6 2. Nf3 d5 3. c4 e6 - Queen's Pawn Game: Symmetrical Variation (5)
              • D02 - 1. Nf3 d5 2. d4 Nf6 3. c4 c5 - Queen's Pawn Game: Symmetrical Variation (7)
                • D02 - 1. d4 Nf6 2. Nf3 d5 3. c4 c5 4. dxc5 - Queen's Pawn Game: Symmetrical Variation (1)
                • D02 - 1. Nf3 d5 2. d4 Nf6 3. c4 c5 4. cxd5 - Queen's Pawn Game: Symmetrical Variation (5)
                • D02 - 1. Nf3 d5 2. d4 Nf6 3. c4 c5 4. e3 - Queen's Pawn Game: Symmetrical Variation (1)
        • D03 - 1. d4 d5 2. Nf3 Nf6 3. Bg5 - Queen's Pawn Game (3)
        • D04 - 1. d4 d5 2. Nf3 Nf6 3. e3 - Queen's Pawn Game (10)
        • D05 - 1. d4 d5 2. Nf3 c5 3. e3 Nf6 4. Nbd2 e6 5. b3 - Queen's Pawn Game: Zukertort Variation (2)
        • D05 - 1. d4 d5 2. Nf3 Nf6 3. e3 e6 - Queen's Pawn Game (6)
          • D05 - 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 - Queen's Pawn Game: Colle System (5)
        • D05 - 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. b3 - Rubinstein Opening (1)
        • D05 - 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. c3 - Queen's Pawn Game: Colle System, Traditional Colle (1)
        • D06 - 1. d4 d5 2. c4 - Queen's Gambit (3)
          • D06 - 1. d4 d5 2. c4 c5 3. cxd5 Nf6 - Queen's Gambit Declined: Austrian Defense, Gusev Countergambit (2)
          • D06 - 1. d4 d5 2. c4 c5 3. cxd5 Qxd5 (1)
      • D07-D09 1. d4 d5 2. c4 Nc6 Queen's Gambit Declined, Chigorin defence (2)
        • D07 - 1. d4 d5 2. c4 Nc6 - Queen's Gambit Declined: Chigorin Defense (1)
        • D08 - 1. d4 d5 2. c4 e5 - Queen's Gambit Declined: Albin Countergambit (1)
        • D09 - 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 - Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation (0)
      • D10-D19 1. d4 d5 2. c4 c6 Queen's Gambit Slav defence (54)
        • D10 - 1. d4 d5 2. c4 c6 - Slav Defense (11)
          • D10 - 1. d4 d5 2. c4 c6 3. cxd5 - Slav Defense: Exchange Variation (8)
          • D10 - 1. d4 d5 2. c4 c6 3. Nc3 - Slav Defense (3)
            • D10 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 - Slav Defense (3)
              • D10 - 1. c4 c6 2. d4 d5 3. Nc3 Nf6 4. cxd5 cxd5 5. Bf4 - Slav Defense (1)
              • D10 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 - Slav Defense (2)
        • D11 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4.... - Slav Defense (6)
          • D11 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 - Slav Defense: Quiet Variation (4)
            • D11 - 1. c4 c6 2. Nf3 d5 3. d4 Nf6 4. e3 a6 - Slav Defense: Quiet Variation (1)
            • D11 - 1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. d4 g6 - Slav Defense: Quiet Variation (2)
            • D11 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4 - Slav Defense: Quiet Variation, Pin Defense (1)
          • D11 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qb3 - Slav Defense: Modern Line (2)
        • D12 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 - Slav Defense: Quiet Variation, Schallopp Defense (7)
        • D13 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 - Slav Defense: Exchange Variation (6)
        • D14 - 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 Bf5 - Slav Defense: Exchange Variation, Symmetrical Line (7)
          • D14 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5 7. Qb3 - Slav Defense: Exchange Variation, Symmetrical Line (2)
          • D14 - 1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5 7. e3 - Slav Defense: Exchange Variation, Symmetrical Line (5)
            • D14 - 1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5 7. e3 e6 - Slav Defense: Exchange Variation, Symmetrical Line (5)
              • D14 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Qb3 Bb4 Queen's Gambit Declined Slav, exchange, Trifunovic variation (4)
              • D14 - 1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Bd3 - Slav Defense: Exchange Variation, Symmetrical Line (1)
        • D15 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 - Slav Defense: Three Knights Variation (5)
          • D15 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 - Slav Defense: Chebanenko Variation (4)
          • D15 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. - Slav Defense: Two Knights Attack (1)
        • D16 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 - Slav Defense: Alapin Variation (3)
          • D16 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 e6 - Slav Defense: Soultanbeieff Variation (3)
        • D17 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 - Slav Defense: Czech Variation (8)
          • D17 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 - Slav Defense: Czech Variation, Krause Attack (7)
            • D17 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 e6 - Slav Defense: Czech Variation, Wiesbaden Variation (1)
            • D17 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 - Slav Defense: Czech Variation, Krause Attack (6)
              • D17 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 - Slav Defense: Czech Variation, Krause Attack (6)
                • D17 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Qc7 8. g3 e5 - Slav Defense: Czech Variation, Carlsbad Variation (2)
                  • D17 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Qc7 8. g3 e5 9. dxe5 Nxe5 10. Bf4 Nfd7 11. Bg2 g5 - Slav Defense: Czech Variation, Carlsbad Variation, Morozevich Variation (1)
          • D17 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Nh4 - Slav Defense: Czech Variation, Bled Attack (1)
        • D18 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 - Slav Defense: Czech Variation, Classical System (0)
        • D19 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O - Slav Defense: Czech Variation, Dutch Variation (1)
      • D20-D29 1. d4 d5 2. c4 dxc4 Queen's gambit accepted (39)
        • D20 - 1. d4 d5 2. c4 dxc4 - Queen's Gambit Accepted (6)
        • D21 - 1. d4 d5 2. c4 dxc4 3. Nf3 - Queen's Gambit Accepted: Normal Variation (1)
          • D21 - 1. d4 d5 2. c4 dxc4 3. Nf3 c5 - Queen's Gambit Accepted: Gunsberg Defense (1)
        • D22 - 1. d4 d5 2. c4 dxc4 3. Nf3 a6 - Queen's Gambit Accepted (0)
        • D23 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 - Queen's Gambit Accepted (0)
        • D24 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 - Queen's Gambit Accepted: Showalter Variation (0)
        • D24 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 dxc4 5. e4 - Queen's Gambit Accepted (7)
        • D24 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 dxc4 5. e4 - Queen's Gambit Accepted (1)
        • D25 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 - Queen's Gambit Accepted: Normal Variation (4)
        • D26 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 - Queen's Gambit Accepted: Normal Variation, Traditional System (14)
          • D26 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 - Queen's Gambit Accepted: Normal Variation, Traditional System (3)
          • D26 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 Be7 - Queen's Gambit Accepted: Normal Variation, Traditional System (1)
          • D26 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 - Queen's Gambit Accepted: Classical Defense (10)
            • D26 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O - Queen's Gambit Accepted: Classical Defense, Normal Line (10)
              • D26 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Be7 - Queen's Gambit Accepted: Classical Defense, Normal Line (5)
              • D26 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O cxd4 - Queen's Gambit Accepted: Classical Defense, Steinitz Variation, Exchange Variation (2)
              • D26 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 - Queen's Gambit Accepted: Classical Defense, Steinitz Variation, Development Variation (2)
              • D26 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Qc7 - Queen's Gambit Accepted: Classical Defense, Normal Line (1)
        • D27 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 - Queen's Gambit Accepted: Classical Defense, Main Line (6)
        • D28 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 - Queen's Gambit Accepted: Classical Defense, Alekhine System (0)
        • D29 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Bb7 - Queen's Gambit Accepted: Classical Defense, Alekhine System, Main Line (0)
      • D30-D39 1. d4 d5 2. c4 e6 Queen's gambit declined (244)
        • D30 - 1. d4 d5 2. c4 e6 - Queen's Gambit Declined (17)
          • D30 - 1. c4 e6 2. d4 d5 3. cxd5 - Queen's Gambit Declined (2)
          • D30 - 1. d4 d5 2. c4 e6 3. g3 - Queen's Gambit Declined (1)
          • D30 - 1. d4 d5 2. c4 e6 3. Nf3 - Queen's Gambit Declined (14)
            • D30 - 1. d4 d5 2. c4 e6 3. Nf3 a6 - Queen's Gambit Declined (1)
            • D30 - 1. d4 d5 2. c4 e6 3. Nf3 Nd7 - Queen's Gambit Declined (3)
            • D30 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 - Queen's Gambit Declined (10)
              • D30 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. cxd5 - Queen's Gambit Declined (2)
              • D30 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 - Queen's Gambit Declined (5)
              • D30 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. e3 (0)
              • D30 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. g3 - Queen's Gambit Declined: Three Knights Variation (0)
              • D30 - 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Bg5 h6 - Queen's Gambit Declined: Capablanca Variation (1)
              • D30 - 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 - Queen's Gambit Declined: Three Knights Variation (1)
              • D30 - 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Bg5 Be7 5. e3 h6 - Queen's Gambit Declined: Traditional Variation (1)
        • D31 - 1. d4 d5 2. c4 e6 3. Nc3 - Queen's Gambit Declined: Queen's Knight Variation (32)
          • D31 - 1. d4 d5 2. c4 e6 3. Nc3 a6 - Queen's Gambit Declined: Janowski Variation (1)
          • D31 - 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. cxd5 exd5 5. Bf4 (2)
          • D31 - 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. Nf3 (1)
          • D31 - 1. d4 d5 2. c4 e6 3. Nc3 Be7 - Queen's Gambit Declined: Charousek Variation (19)
            • D31 - 1. c4 e6 2. Nc3 d5 3. d4 Be7 4. cxd5 exd5 5. Bf4 - Queen's Gambit Declined: Charousek Variation (14)
              • D31 - 1. c4 e6 2. Nc3 d5 3. d4 Be7 4. cxd5 exd5 5. Bf4 c6 6. e3 - Queen's Gambit Declined: Charousek Variation (7)
              • D31 - 1. c4 e6 2. Nc3 d5 3. d4 Be7 4. cxd5 exd5 5. Bf4 c6 6. h3 - Queen's Gambit Declined: Charousek Variation (1)
              • D31 - 1. c4 e6 2. Nc3 d5 3. d4 Be7 4. cxd5 exd5 5. Bf4 Nf6 6. e3 - Queen's Gambit Declined: Charousek Variation (6)
            • D31 - 1. c4 e6 2. Nc3 d5 3. d4 Be7 4. Nf3 Nf6 5. Bg5 - Queen's Gambit Declined: Charousek Variation (1)
            • D31 - 1. c4 e6 2. Nc3 d5 3. d4 Be7 4. Nf3 Nf6 5. g3 - Queen's Gambit Declined: Charousek Variation (2)
          • D31 - 1. d4 d5 2. c4 e6 3. Nc3 Be7 - Queen's Gambit Declined: Charousek Variation (17)
          • D31 - 1. d4 d5 2. c4 e6 3. Nc3 c6 4. - Semi-Slav Defense: Accelerated Move Order (3)
          • D31 – 1. d4 d5 2. c4 e6 3. Nc3 4..... – Queen’s Gambit Declined: Queen’s Knight Variation (6)
        • D31 - 1. d4 d5 2. c4 e6 3. Nf3 c6 4. Nc3 dxc4 5. a4 Bb4 (1)
        • D32 - 1. d4 d5 2. c4 e6 3. Nc3 c5 - Tarrasch Defense (21)
          • D32 - 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4 - Tarrasch Defense: Schara Gambit (2)
          • D32 - 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. e4 (1)
          • D32 - 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 - Tarrasch Defense: Two Knights Variation (7)
          • D32 - 1. d4 d5 2. c4 e6 3. Nc3 c5 4. dxc5 (1)
          • D32 - 1. d4 d5 2. c4 e6 3. Nc3 c5 4. e3 Nf6 5. cxd5 (1)
          • D32 - 1. d4 d5 2. c4 e6 3. Nc3 c5 4. e3 Nf6 5. Nf3 Nc6 - Tarrasch Defense: Symmetrical Variation (5)
          • D32 - 1. d4 d5 2. c4 e6 3. Nc3 c5 4.... - Tarrasch Defense (8)
        • D33 - 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 - Tarrasch Defense: Rubinstein System (8)
          • D33 - 1. c4 e6 2. Nc3 d5 3. d4 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. a3 (1)
          • D33 - 1. c4 e6 2. Nc3 d5 3. d4 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Be3 (2)
          • D33 - 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 cxd4 8. Nxd4 Bc5 - Tarrasch Defense: Dubov Tarrasch (5)
        • D34 - 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 - Tarrasch Defense: Prague Variation, Main Line (2)
          • D34 - 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. dxc5 Bxc5 10. Na4 - Tarrasch Defense: Classical Variation, Réti Variation (1)
          • D34 - 1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. Nf3 d5 5. cxd5 exd5 6. g3 Nc6 7. Bg2 Be7 8. O-O O-O 9. Bg5 Be6 10. Rc1 c4 - Tarrasch Defense: Classical Variation, Bogoljubow Variation (1)
        • D35 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 - Queen's Gambit Declined: Exchange Variation (72)
          • D35 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bf4 (2)
          • D35 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 - Queen's Gambit Declined: Exchange Variation, Positional Variation (69)
            • D35 - 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Be7 - Queen's Gambit Declined: Exchange Variation, Positional Variation (32)
              • D35 - 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 h6 - Queen's Gambit Declined: Exchange Variation, Positional Variation (14)
                • D35 - 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 h6 7. Bh4 Bg4 - Queen's Gambit Declined: Exchange Variation, Positional Variation (7)
                • D35 - 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 h6 7. Bh4 O-O - Queen's Gambit Declined: Exchange Variation, Positional Variation (7)
              • D35 - 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O - Queen's Gambit Declined: Exchange Variation, Positional Variation (11)
                • D35 - 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 Re8 - Queen's Gambit Declined: Exchange Variation, Positional Variation (9)
                • D35 - 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 h6 - Queen's Gambit Declined: Exchange Variation, Positional Variation (2)
              • D35 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 - Queen's Gambit Declined: Exchange Variation, Positional Variation (7)
            • D35 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Bb4 - Queen's Gambit Declined: Exchange Variation, Positional Variation (13)
            • D35 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be6 - Queen's Gambit Declined: Exchange Variation, Positional Variation (1)
            • D35 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 - Queen's Gambit Declined: Exchange Variation, Positional Variation (23)
              • D35 - 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Bf5 - Queen's Gambit Declined: Exchange Variation, Positional Variation (11)
                • D35 - 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Bf5 7. Bd3 - Queen's Gambit Declined: Exchange Variation, Positional Variation (1)
                • D35 - 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Bf5 7. Nge2 - Queen's Gambit Declined: Exchange Variation, Positional Variation (1)
                • D35 - 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Bf5 7. Qb3 - Queen's Gambit Declined: Exchange Variation, Positional Variation (1)
                • D35 - 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Bf5 7. Qf3 - Queen's Gambit Declined: Exchange Variation, Positional Variation (7)
                • D35 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. e3 Bf5 7. f3 - Queen's Gambit Declined: Exchange Variation, Positional Variation (1)
              • D35 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. e3 Bd6 - Queen's Gambit Declined: Exchange Variation, Positional Variation (2)
              • D35 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. e3 h6 - Queen's Gambit Declined: Exchange Variation, Positional Variation (10)
          • D35 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 Nxd5 5. - Queen's Gambit Declined: Exchange Variation (1)
        • D35 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. cxd5 exd5 6. Bf4 (1)
        • D36 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 - Queen's Gambit Declined: Exchange Variation, Reshevsky Variation (2)
        • D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 - Queen's Gambit Declined: Three Knights Variation (56)
          • D37 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. e3 (1)
          • D37 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. g3 (1)
          • D37 - 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. cxd5 exd5 6. Bf4 (4)
          • D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 - Queen's Gambit Declined: Harrwitz Attack (16)
            • D37 - 1. d4 d5 2. Nf3 e6 3. c4 Nf6 4. Nc3 Be7 5. Bf4 O-O - Queen's Gambit Declined: Harrwitz Attack (15)
              • D37 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bf4 O-O 6. e3 - Queen's Gambit Declined: Harrwitz Attack (13)
                • D37 - 1. c4 e6 2. Nc3 d5 3. d4 Be7 4. Bf4 Nf6 5. e3 O-O 6. Nf3 Nbd7 - Queen's Gambit Declined: Harrwitz Attack (4)
                  • D37 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. Bf4 O-O 6. e3 Nbd7 7. c5 - Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense, Blockade Line (3)
                • D37 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bf4 O-O 6. e3 b6 - Queen's Gambit Declined: Harrwitz Attack (4)
                • D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 c5 - Queen's Gambit Declined: Harrwitz Attack (4)
              • D37 - 1. d4 d5 2. Nf3 e6 3. c4 Nf6 4. Nc3 Be7 5. Bf4 O-O 6. e3 - Queen's Gambit Declined: Harrwitz Attack (1)
              • D37 - 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 O-O 6. a3 - Queen's Gambit Declined: Harrwitz Attack (1)
              • D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. Qc2 - Queen's Gambit Declined: Harrwitz Attack (1)
          • D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 (3)
          • D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. h3 (1)
          • D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 - Queen's Gambit Declined: Three Knights, Vienna Variation (3)
            • D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e3 - Queen's Gambit Declined: Vienna Variation, Quiet Variation (2)
          • D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 h6 5. - Queen's Gambit Declined: Three Knights Variation (5)
          • D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 - Queen's Gambit Declined: Barmen Variation (20)
            • D37 - 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nbd7 5. g3 - Queen's Gambit Declined: Barmen Variation (1)
            • D37 - 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nbd7 5. Qc2 - Queen's Gambit Declined: Barmen Variation (4)
            • D37 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nbd7 5. e3 - Queen's Gambit Declined: Barmen Variation (1)
            • D37 - 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Nbd7 5. cxd5 - Queen's Gambit Declined: Barmen Variation (7)
            • D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. Bf4 - Queen's Gambit Declined: Barmen Variation (4)
            • D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. Bg5 - Queen's Gambit Declined: Barmen Variation (3)
          • D37 - 1. Nf3 d5 2. c4 e6 3. d4 Nf6 4. Nc3 a6 - Queen's Gambit Declined: Three Knights Variation (3)
        • D38 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 - Queen's Gambit Declined: Ragozin Defense (33)
          • D38 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 - Queen's Gambit Declined: Ragozin Defense (12)
            • D38 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 Nbd7 6. e3 c5 - Queen's Gambit Declined: Westphalian Variation (1)
          • D38 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ - Queen's Gambit Declined: Ragozin Defense, Alekhine Variation (12)
          • D38 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qb3 - Queen's Gambit Declined: Ragozin Defense (2)
          • D38 – 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5.... – Queen’s Gambit Declined: Ragozin Defense (9)
        • D39 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 dxc4 - Queen's Gambit Declined: Ragozin Defense, Vienna Variation (2)
      • D40-D42 – 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 – Queen’s Gambit Declined: Semi-Tarrasch Defense (14)
        • D40 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 - Queen's Gambit Declined: Semi-Tarrasch Defense (2)
        • D41 - 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 d5 5. d4 e6 - Queen's Gambit Declined: Semi-Tarrasch Defense (1)
        • D41 - 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Nf3 c5 5. cxd5 Nxd5 (2)
        • D41 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 cxd4ù (9)
        • D42 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 - Queen's Gambit Declined: Semi-Tarrasch Defense, Main Line (0)
      • D43-D49 Queen's Gambit Declined semi-Slav1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 (51)
        • D43 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 - Semi-Slav Defense (22)
          • D43 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5.... - Semi-Slav Defense (13)
          • D43 - 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. g3 (2)
          • D43 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. Bg5 (14)
            • D43 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bh4 - Semi-Slav Defense: Anti-Moscow Gambit (4)
            • D43 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 h6 6. Bxf6 (5)
          • D43 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. e3 Nbd7 6. Be2 - Semi-Slav Defense: Normal Variation (0)
          • D43 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. g4 (1)
          • D43 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. Qd3 (1)
          • D43 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. cxd5 (4)
        • D44 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 - Semi-Slav Defense Accepted (2)
          • D44 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 - Semi-Slav Defense: Botvinnik Variation (2)
        • D45 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 - Semi-Slav Defense: Main Line (20)
          • D45 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 a6 - Semi-Slav Defense: Accelerated Meran Variation (8)
          • D45 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 - Semi-Slav Defense: Stoltz Variation (7)
          • D45 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. e3 Nbd7 6. Be2 (1)
          • D45 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Nbd7 6. h3 (4)
        • D46 (1)
          • D46 - 1. d4 d5 2. c4 c6 3. Nf3 e6 4. e3 Nf6 5. Nc3 Bd6 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Nbd7 9. O-O O-O 10. Qc2 - Semi-Slav Defense: Chigorin Defense (1)
        • D46 - 1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 e6 5. b3 Bd6 6. Bb2 O-O 7. d4 (1)
        • D46 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 - Semi-Slav Defense: Main Line (5)
          • D46 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Bd6 7. Qc2 - Semi-Slav Defense: Chigorin Defense (5)
            • D46 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Nbd7 6. Qc2 Bd6 7. Bd3 dxc4 - Semi-Slav Defense: Chigorin Defense (1)
            • D46 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Nbd7 6. Qc2 Bd6 7. Bd3 O-O 8. O-O (4)
        • D47 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 - Semi-Slav Defense: Semi-Meran Variation (0)
        • D48 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 - Semi-Slav Defense: Meran Variation (0)
        • D49 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 - Semi-Slav Defense: Meran Variation, Blumenfeld Variation (0)
      • D50-D69 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Queen's Gambit Declined, 4.Bg5 (11)
        • D50 - 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 - Queen's Gambit Declined: Modern Variation (2)
        • D51 - 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 - Queen's Gambit Declined: Modern Variation, Knight Defense (1)
        • D52 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 - Queen's Gambit Declined (1)
        • D53 - 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 - Queen's Gambit Declined (3)
        • D54 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Rc1 - Queen's Gambit Declined: Neo-Orthodox Variation (0)
        • D55 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 - Queen's Gambit Declined: Modern Variation, Normal Line (0)
        • D56 - 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 - Queen's Gambit Declined: Lasker Defense (0)
        • D57 - 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3 - Queen's Gambit Declined: Lasker Defense, Main Line (0)
        • D58 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 - Queen's Gambit Declined: Tartakower Defense (3)
        • D59 - 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Nxd5 exd5 11. Rc1 Be6 - Queen's Gambit Declined: Tartakower Defense (0)
        • D60 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 - Queen's Gambit Declined: Orthodox Defense (0)
        • D61 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Qc2 - Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation (0)
        • D62 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Qc2 c5 8. cxd5 - Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation, Flohr Line (1)
        • D63 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 b6 8. cxd5 exd5 9. Bd3 - Queen's Gambit Declined: Orthodox Defense, Pillsbury Variation (0)
        • D64 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. a3 a6 9. Qc2 - Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack (0)
        • D65 - 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Qc2 a6 9. cxd5 - Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack (0)
        • D66 - 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 - Queen's Gambit Declined: Orthodox Defense, Bd3 Line (0)
        • D67 - 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 - Queen's Gambit Declined: Orthodox Defense, Capablanca System (0)
        • D68 - 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 - Queen's Gambit Declined: Orthodox Defense, Classical Vari (0)
        • D69 - 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. dxe5 Nxe5 14. Nxe5 Qxe5 - Queen's Gambit Declined: Orth (0)
      • D70-D79 1. d4 Nf6 2. c4 g6 3. f3 d5 Neo-Gruenfeld defence (19)
        • D70 - 1. d4 Nf6 2. c4 g6 3. f3 d5 - Neo-Grünfeld Defense (1)
        • D71 - 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 - Neo-Grünfeld Defense: Exchange Variation (1)
        • D73 - 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 - Neo-Gruenfeld, 5.Nf3 (3)
        • D74 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O - Neo-Grünfeld Defense: Delayed Exchange Variation (2)
        • D75 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. g3 d5 6. cxd5 Nxd5 7. Bg2 c5 8. O-O - Neo-Grünfeld Defense: Delayed Exchange Variation (0)
        • D75 - 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O c5 8. dxc5 - Neo-Grünfeld Defense: Delayed Exchange Variation (1)
        • D76 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O Nb6 - Neo-Grünfeld Defense: Delayed Exchange Variation (0)
        • D77 - 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 - Neo-Grünfeld Defense: Classical Variation (4)
        • D78 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 - Neo-Grünfeld Defense: Classical Variation, Original Defense (6)
        • D79 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. cxd5 cxd5 - Neo-Grünfeld Defense: Ultra-Delayed Exchange Variation (1)
      • D80-D99 Gruenfeld defence1. d4 Nf6 2. c4 g6 3. Nc3 d5 (34)
        • D80 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 - Grünfeld Defense (2)
        • D81 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 - Grünfeld Defense: Russian Variation, Accelerated Variation (0)
        • D82 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 - Grünfeld Defense: Brinckmann Attack (0)
        • D83 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O - Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit (1)
        • D83 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Rc1 O-O 6. e3 c5 7. dxc5 Qa5 - Grünfeld Defense: Brinckmann Attack, Reshevsky Gambit (1)
        • D84 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. cxd5 Nxd5 7. Nxd5 Qxd5 8. Bxc7 - Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit Accepted (0)
        • D85 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5- Grünfeld Defense (16)
          • D85 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 (1)
          • D85 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 - Grünfeld Defense: Exchange Variation, Modern Exchange Variation (13)
            • D85 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 - Grünfeld Defense: Exchange Variation, Modern Exchange Variation (13)
              • D85 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Bb5 - Grünfeld Defense: Exchange Variation, Modern Exchange Variation (7)
              • D85 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Be3 - Grünfeld Defense: Exchange Variation, Modern Exchange Variation (2)
              • D85 - 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8. h3 - Grünfeld Defense: Exchange Variation, Modern Exchange Variation, Kramnik's Line (2)
              • D85 - 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8. Rb1 - Grünfeld Defense: Exchange Variation, Modern Exchange Variation (2)
          • D85 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Qa4 (2)
        • D86 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 - Grünfeld Defense: Exchange Variation, Classical Variation (2)
        • D87 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 O-O Grünfeld Defense: Exchange Variation, Spassky Variation| (4)
          • D87 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O Bg4 11. f3 Na5 12. Bxf7+ - Grünfeld Defense: Exchange Variation, Seville Variation (1)
          • D87 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 O-O - Grünfeld Defense: Exchange Variation, Spassky Variation (3)
        • D88 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O cxd4 11. cxd4 - Grünfeld Defense: Exchange Variation, Spassky Variation (0)
        • D89 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O Bg4 11. f3 Na5 12. Bd3 cxd4 13. cxd4 Be6 - Grünfeld Defense: Exchange Variation, Spassky (0)
        • D90 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 - Grünfeld Defense: Three Knights Variation (0)
        • D91 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg5 - Grünfeld Defense: Three Knights Variation, Petrosian System (5)
        • D92 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 - Grünfeld Defense: Three Knights Variation, Hungarian Attack (0)
        • D93 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 - Grünfeld Defense: Three Knights Variation, Hungarian Variation (0)
        • D94 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4.... - Grünfeld Defense (0)
        • D94 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 - Grünfeld Defense: Three Knights Variation, Burille Variation (3)
          • D94 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O - Grünfeld Defense: Three Knights Variation, Burille Variation (3)
            • D94 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Bd2 (2)
            • D94 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. cxd5 - Grünfeld Defense: Three Knights Variation, Burille Variation (1)
        • D95 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Qb3 dxc4 6. Bxc4 O-O 7. Nf3 Nbd7 8. Ng5 - Grünfeld Defense: Pachman Variation (0)
        • D96 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 - Grünfeld Defense: Russian Variation (0)
        • D97 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 - Grünfeld Defense: Russian Variation (0)
        • D98 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 - Grünfeld Defense: Russian Variation, Smyslov Variation (0)
        • D99 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Qb3 - Grünfeld Defense: Russian Variation, Smyslov Variation (0)
    • SÉRIE E (387)
      • E00 - 1. d4 Nf6 2. c4 e6 3. g3 - Catalan Opening (4)
        • E00 - 1. d4 Nf6 2. c4 e6 3. Bg5 - Indian Defense: Seirawan Attack (0)
        • E00 - 1. d4 Nf6 2. c4 e6 3. g3 - Catalan Opening (4)
          • E00 - 1. d4 Nf6 2. c4 e6 3. g3 Bb4 - Catalan Opening (2)
          • E00 - 1. d4 Nf6 2. c4 e6 3. g3 c5 - Catalan Opening (2)
          • E00 - 1. d4 Nf6 2. c4 e6 3. g3 e5 - Catalan Opening: Hungarian Gambit (0)
        • E00 - 1. d4 Nf6 2. c4 e6 3. g4 - Indian Defense: Devin Gambit (0)
        • E00 - 1. d4 Nf6 2. c4 e6 3. Qb3 - Indian Defense (0)
      • E01-E09 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Catalan, closed (85)
        • E01 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 - Catalan Opening: Closed (8)
        • E02 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 - Catalan Opening: Open Defense (0)
        • E03 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 - Catalan Opening: Open Defense (0)
        • E04 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 - Catalan Opening: Open Defense (19)
          • E04 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 a6 - Catalan Opening: Open Defense (3)
          • E04 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 Bd7 - Catalan Opening: Open Defense (1)
          • E04 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 c5 - Catalan Opening: Open Defense (6)
          • E04 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 c6 - Catalan Opening: Open Defense (2)
          • E04 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 Nc6 - Catalan Opening: Open Defense (3)
          • E04 - 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 dxc4 5. Bg2 Bb4+ - Catalan Opening: Open Defense (4)
        • E05 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7 - Catalan Opening: Open Defense, Classical Line (31)
          • E05 – 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. ... (31)
            • E05 - 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 dxc4 7. Ne5 Nc6 8. Bxc6 (3)
            • E05 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qa4 a6 8. Qxc4 (7)
            • E05 - 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 (21)
              • E05 - 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. d4 Be7 5. Nf3 O-O 6. O-O dxc4 7. Qc2 c6 (1)
              • E05 - 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 (20)
                • E05 - 1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. Nf3 O-O 6. O-O dxc4 7. Qc2 a6 8. Rd1 (1)
                • E05 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 (4)
                • E05 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. Qxc4 (1)
                • E05 - 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 (14)
        • E06 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 - Catalan Opening: Closed (24)
          • E06 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O - Catalan Opening: Closed (24)
            • E06 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O - Catalan Opening: Closed (1)
            • E06 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. Qc2 - Catalan Opening: Closed (1)
            • E06 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. Nbd2 - Catalan Opening: Closed (1)
            • E06 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. Nc3 - Catalan Opening: Closed (17)
              • E06 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. Nc3 dxc4 - Catalan Opening: Closed (8)
              • E06 - 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. c4 Be7 5. d4 O-O 6. Nc3 Nbd7 - Catalan Opening: Closed (8)
            • E06 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. Qd3 - Catalan Opening: Closed (3)
            • E06 - 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. c4 Be7 5. d4 O-O 6. Nc3 - Catalan Opening: Closed (17)
            • E06 - 1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. c4 Be7 5. d4 O-O 6. b3 - Catalan Opening: Closed (1)
        • E07 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7 - Catalan Opening: Closed (0)
        • E08 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O c6 7. Qc2 b6 8. Rd1 Nbd7 9. Bf4 - Catalan Opening: Closed (1)
        • E08 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7 7. Qc2 - Catalan Opening: Closed (2)
        • E09 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Qc2 c6 8. Nbd2 - Catalan Opening: Closed, Main Line (0)
      • E10 - 1. d4 Nf6 2. c4 e6 3. Nf3 - Indian Defense: Anti-Nimzo-Indian (12)
        • E10 - 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4.... - Blumenfeld Countergambit (2)
        • E10 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 Nbd7 5. Nc3 a6 6. b3 (1)
        • E10 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 (1)
        • E10 – 1. d4 Nf6 2. c4 e6 3. Nf3 ... – Indian Defense: Anti-Nimzo-Indian (8)
      • E11 - 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ - Bogo-Indian Defense (53)
        • E11 - 1. d4 Nf6 2. c4 e6 3. g3 Bb4 4. Bd2 Be7 - Bogo-Indian Defense: Retreat Variation (1)
        • E11 - 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4 4. Bd2 a5 (1)
        • E11 - 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4 4. Bd2 c5 (2)
        • E11 - 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Be7 - Bogo-Indian Defense: Retreat Variation (2)
        • E11 - 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ - Bogo-Indian Defense: Exchange Variation (4)
        • E11 - 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 (2)
        • E11 - 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 (10)
        • E11 - 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 - Bogo-Indian Defense: Grünfeld Variation (11)
        • E11 - 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 Bb4 - Bogo-Indian Defense: Retreat Variation (20)
          • E11 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O (14)
            • E11 - 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 (6)
            • E11 - 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O Nbd7 (8)
              • E11 - 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 Nbd7 7. O-O O-O 8. Qc2 c6 - Bogo-Indian Defense: Retreat Variation (7)
              • E11 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4 5. Bd2 Be7 6. Bg2 O-O 7. O-O Nbd7 8. b4 - Bogo-Indian Defense: Retreat Variation (1)
          • E11 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 c6 (3)
          • E11 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 Nbd7 (3)
      • E12-E19 1. d4 Nf6 2. c4 e6 3. Nf3 b6 Queen's Indian defence (32)
        • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 - Queen's Indian Defense (18)
          • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 - Queen's Indian Defense: Petrosian Variation (16)
            • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 - Queen's Indian Defense: Kasparov-Petrosian Variation (15)
              • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Be7 - Queen's Indian Defense: Kasparov-Petrosian Variation, Marco Defense (1)
              • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 (7)
                • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. Bf4 - Queen's Indian Defense: Kasparov-Petrosian Variation, Main Line (1)
                • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 - Queen's Indian Defense: Kasparov-Petrosian Variation, Modern Variation (3)
                  • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. Bd2 - Queen's Indian Defense: Kasparov-Petrosian Variation, Romanishin Attack (1)
                  • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. e3 - Queen's Indian Defense: Kasparov-Petrosian Variation, Petrosian Attack (1)
                  • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. Nxd5 - Queen's Indian Defense: Kasparov-Petrosian Variation, Modern Variation (1)
                • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. Qa4 - Queen's Indian Defense: Kasparov-Petrosian Variation, Main Line (2)
                • E12 - 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. a3 Bb7 5. Nc3 d5 6. Qc2 - Queen's Indian Defense: Kasparov-Petrosian Variation, Main Line (1)
              • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d6 - Queen's Indian Defense: Kasparov-Petrosian Variation (1)
              • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Ne4 - Queen's Indian Defense: Kasparov-Petrosian Variation, Andersson Variation (6)
            • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 c6 - Queen's Indian Defense: Petrosian Variation (1)
          • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Bf4 - Queen's Indian Defense: Miles Variation (1)
          • E12 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 - Queen's Indian Defense: Kasparov Variation (1)
        • E13 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4.... - Queen's Indian Defense (0)
        • E14 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 - Queen's Indian Defense: Spassky System (0)
        • E15 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 - Queen's Indian Defense: Fianchetto Variation (10)
          • E15 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 - Queen's Indian Defense: Fianchetto Variation, Check Variation, Intermezzo Line (2)
          • E15 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb7 (1)
          • E15 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 d5 (2)
          • E15 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Qa4 - Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation, Nimzowitsch Attack (2)
          • E15 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Qc2 (1)
          • E15 - 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Ba6 5. Nbd2 (2)
        • E16 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ - Queen's Indian Defense: Capablanca Variation (2)
        • E17 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 - Queen's Indian Defense: Traditional Variation (2)
        • E18 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 - Queen's Indian Defense: Classical Variation, Traditional Variation (0)
        • E19 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 - Queen's Indian Defense: Classical Variation, Traditional Variation, Main Line (0)
      • E20-E59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 Nimzo-Indian defence (119)
        • E20 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 - Nimzo-Indian Defense (10)
          • E20 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 - Nimzo-Indian Defense: Kmoch Variation (7)
          • E20 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. g3 - Nimzo-Indian Defense: Romanishin Variation (3)
        • E21 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 - Nimzo-Indian Defense: Three Knights Variation (9)
        • E22 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 - Nimzo-Indian Defense: Spielmann Variation (0)
        • E23 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 - Nimzo-Indian Defense: Spielmann Variation, Romanovsky Gambit (0)
        • E24 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 - Nimzo-Indian Defense: Sämisch Variation (5)
        • E25 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 - Nimzo-Indian Defense: Sämisch Variation (2)
        • E26 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 - Nimzo-Indian Defense: Sämisch Variation (2)
          • E26 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 - Nimzo-Indian Defense: Sämisch Variation, O'Kelly Variation (2)
        • E27 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O - Nimzo-Indian Defense: Sämisch Variation (0)
        • E28 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 - Nimzo-Indian Defense: Sämisch Variation (2)
        • E29 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. a3 Bxc3+ 7. bxc3 O-O - Nimzo-Indian Defense: Sämisch Variation (2)
        • E30 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 - Nimzo-Indian Defense: Leningrad Variation (0)
        • E31 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 d6 - Nimzo-Indian Defense: Leningrad Variation, Benoni Defense (0)
        • E32 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 - Nimzo-Indian Defense: Classical Variation (13)
          • E32 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 b6 (1)
          • E32 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d6 (4)
          • E32 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 h6 (1)
          • E32 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O (7)
        • E33 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 - Nimzo-Indian Defense: Classical Variation, Zurich Variation (0)
        • E34 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 - Nimzo-Indian Defense: Classical Variation, Noa Variation (0)
        • E35 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 exd5 - Nimzo-Indian Defense: Classical Variation, Noa Variation (3)
        • E36 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 - Nimzo-Indian Defense: Classical Variation, Noa Variation (2)
        • E37 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 - Nimzo-Indian Defense: Classical Variation, Noa Variation (0)
        • E38 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 - Nimzo-Indian Defense: Classical Variation, Berlin Variation (2)
        • E39 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O - Nimzo-Indian Defense: Classical Variation, Berlin Variation, Pirc Variation (6)
        • E40 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 - Nimzo-Indian Defense: Rubinstein System (1)
        • E41 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 - Nimzo-Indian Defense: Rubinstein System (4)
        • E42 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 - Nimzo-Indian Defense: Rubinstein System, Rubinstein Variation (1)
        • E43 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 - Nimzo-Indian Defense: St. Petersburg Variation (2)
          • E43 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O c5 - Nimzo-Indian Defense: St. Petersburg Variation (2)
        • E44 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 - Nimzo-Indian Defense: St. Petersburg Variation (2)
        • E45 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 - Nimzo-Indian Defense: St. Petersburg Variation, Fischer Variation (4)
        • E46 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O - Nimzo-Indian Defense: Normal Variation (9)
          • E46 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 - Nimzo-Indian Defense: Normal Variation (8)
          • E46 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 - Nimzo-Indian Defense: Reshevsky Variation (1)
        • E47 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 - Nimzo-Indian Defense: Normal Variation (6)
        • E48 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 - Nimzo-Indian Defense: Normal Variation, Classical Defense (12)
          • E48 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 (3)
          • E48 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. cxd5 (7)
          • E48 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 (2)
        • E49 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 - Nimzo-Indian Defense: Normal Variation, Botvinnik System (8)
        • E50 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 - Nimzo-Indian Defense (0)
        • E51 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 - Nimzo-Indian Defense: Normal Variation, Ragozin Variation (2)
        • E52 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 - Nimzo-Indian Defense: Normal Variation, Schlechter Defense (2)
        • E53 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 - Nimzo-Indian Defense: Normal Variation, Gligoric System (1)
        • E54 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 - Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange Variation (7)
        • E55 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 - Nimzo-Indian Defense: Normal Variation, Gligoric System, Bronstein Variation (0)
        • E56 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 - Nimzo-Indian Defense: Normal Variation, Gligoric System, Bernstein Defense (0)
        • E58 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3 - Nimzo-Indian Defense: Normal Variation, Bernstein Defense, Exchange Line (0)
        • E59 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 - Nimzo-Indian Defense: Normal Variation, Bernstein Defense (0)
      • E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence (82)
        • E60 - 1. d4 Nf6 2. c4 g6 - Indian Defense: West Indian Defense (22)
          • E60 - 1. d4 Nf6 2. c4 g6 3. Bg5 Bg7 4. Nc3 d5 - Indian Defense: West Indian Defense (1)
          • E60 - 1. d4 Nf6 2. c4 g6 3. f3 - Indian Defense: Anti-Grünfeld, Alekhine Variation (4)
          • E60 - 1. d4 Nf6 2. c4 g6 3. g3 - King's Indian Defense: Fianchetto Variation, Immediate Fianchetto (13)
            • E60 - 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4.... - Grünfeld Defense (8)
            • E60 - 1. d4 Nf6 2. c4 g6 3. g3 c5 - King's Indian Defense: Fianchetto Variation, Immediate Fianchetto (1)
            • E60 - 1. d4 Nf6 2. c4 g6 3. g3 c6 - King's Indian Defense: Fianchetto Variation, Immediate Fianchetto (4)
          • E60 - 1. d4 Nf6 2. c4 g6 3. h4 (2)
        • E60 - 1. d4 Nf6 2. Nf3 g6 3. c4 - King's Indian Defense: Normal Variation, King's Knight Variation (5)
          • E60 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. e3 O-O - King's Indian Defense: Normal Variation, King's Knight Variation (2)
          • E60 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 - King's Indian Defense: Fianchetto Variation (3)
        • E61 - 1. d4 Nf6 2. c4 g6 3. Nc3 - King's Indian Defense (5)
          • E61 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 - King's Indian Defense (5)
            • E61 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 - King's Indian Defense (5)
              • E61 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. Bg5 - King's Indian Defense: Smyslov Variation (1)
        • E62 - 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nc6 - King's Indian Defense: Fianchetto Variation, Carlsbad Variation (2)
          • E62 - 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nc6 7. d5 - King's Indian Defense: Fianchetto Variation, Carlsbad Variation (1)
          • E62 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 c6 7. O-O Bf5 - King's Indian Defense: Fianchetto Variation, Larsen Defense (1)
        • E63 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 a6 - King's Indian Defense: Fianchetto Variation, Panno Variation (0)
        • E64 - 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 c5 - King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Rare Line (0)
        • E65 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c5 7. Nc3 - King's Indian Defense: Fianchetto Variation, Yugoslav Variation (2)
          • E65 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c5 7. Nc3 Nc6 8. dxc5 dxc5 - King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Exchange Line (2)
        • E66 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c5 7. Nc3 Nc6 8. d5 - King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Advance Line (2)
        • E67 - 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 - King's Indian Defense: Fianchetto Variation, Debrecen Defense (0)
        • E67 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 - King's Indian Defense: Fianchetto Variation, Classical Fianchetto (3)
        • E68 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 - King's Indian Defense: Fianchetto Variation, Classical Variation (8)
        • E69 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. h3 - King's Indian Defense: Fianchetto Variation, Classical Main Line (1)
        • E70 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 - King's Indian Defense: Normal Variation (1)
        • E71 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 - King's Indian Defense: Makogonov Variation (2)
        • E72 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. g3 - King's Indian Defense: Normal Variation, Deferred Fianchetto (0)
        • E73 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 - King's Indian Defense: Normal Variation, Standard Development (7)
          • E73 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 e5 - King's Indian Defense: Normal Variation, Standard Development (1)
          • E73 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 Nbd7 - King's Indian Defense: Normal Variation, Standard Development (2)
          • E73 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Be3 - King's Indian Defense: Semi-Averbakh System (3)
          • E73 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 - King's Indian Defense: Averbakh Variation (1)
        • E74 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 - King's Indian Defense: Averbakh Variation, Benoni Defense (0)
        • E75 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. d5 e6 - King's Indian Defense: Averbakh Variation, Main Line (0)
        • E76 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 - King's Indian Defense: Four Pawns Attack (0)
        • E77 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 - King's Indian Defense: Four Pawns Attack (0)
        • E78 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. Be2 - King's Indian Defense: Four Pawns Attack, Fluid Attack (0)
        • E79 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. Be2 cxd4 8. Nxd4 Nc6 9. Be3 - King's Indian Defense: Four Pawns Attack, Exchange Variation (0)
        • E80 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 - King's Indian Defense: Sämisch Variation (0)
        • E81 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O - King's Indian Defense: Sämisch Variation, Normal Defense (0)
        • E82 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 b6 - King's Indian Defense: Sämisch Variation, Double Fianchetto (0)
        • E83 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 - King's Indian Defense: Sämisch Variation, Yates Defense (0)
        • E84 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Nge2 a6 8. Qd2 Rb8 - King's Indian Defense: Sämisch Variation, Panno Main Line (0)
        • E85 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 - King's Indian Defense: Sämisch Variation, Orthodox Variation (0)
        • E86 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 - King's Indian Defense: Sämisch Variation (0)
        • E87 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 - King's Indian Defense: Sämisch Variation, Closed Variation (0)
        • E89 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 8. d5 cxd5 - King's Indian Defense: Sämisch Variation, Closed Variation, Main Line (0)
        • E90 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 - King's Indian Defense: Normal Variation, Rare Defenses (6)
        • E91 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 - King's Indian Defense: Orthodox Variation (2)
        • E92 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 - King's Indian Defense: Orthodox Variation (4)
          • E92 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 - King's Indian Defense: Petrosian Variation (4)
            • E92 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 a5 - King's Indian Defense: Petrosian Variation, Stein Defense (4)
        • E93 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7 - King's Indian Defense: Petrosian Variation, Normal Defense (1)
        • E94 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O - King's Indian Defense: Orthodox Variation (12)
          • E94 - 1. c4 g6 2. Nc3 Bg7 3. d4 Nf6 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Re8 - King's Indian Defense: Orthodox Variation (2)
          • E94 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Bg4 - King's Indian Defense: Orthodox Variation (1)
          • E94 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Na6 - King's Indian Defense: Orthodox Variation, Glek Defense (5)
          • E94 - 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. O-O exd4 - King's Indian Defense: Orthodox Variation (2)
          • E94 - 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. O-O h6 - King's Indian Defense: Orthodox Variation (2)
        • E95 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Re1 - King's Indian Defense: Orthodox Variation (1)
        • E96 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Re1 c6 9. Bf1 a5 - King's Indian Defense: Orthodox Variation, Positional Defense, Main Line (0)
        • E97 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 - King's Indian Defense: Orthodox Variation, Aronin-Taimanov Defense (0)
        • E98 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 - King's Indian Defense: Orthodox Variation, Classical System (1)
        • E99 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. f3 f5 - King's Indian Defense: Orthodox Variation, Classical System, Traditional Line (0)

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