D30-D39 1. d4 d5 2. c4 e6 Queen's gambit declined

├── D30 - 1. d4 d5 2. c4 e6 - Queen's Gambit Declined (14)
├── 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)
├── D31 - 1. d4 d5 2. c4 e6 3. Nc3 - Queen's Gambit Declined: Queen's Knight Variation (28)
├── 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 (18)
├── 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 - Tarrasch Defense: Rubinstein System (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 (0)
├── 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 (62)
├── 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 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. g3 (1)
├── D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 - Queen's Gambit Declined: Three Knights Variation (49)
├── D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. h3 (1)
├── D38 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 - Queen's Gambit Declined: Ragozin Defense (26)
└── D39 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 dxc4 - Queen's Gambit Declined: Ragozin Defense, Vienna Variation (1)