E20-E59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 Nimzo-Indian defence

├── E20 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 - Nimzo-Indian Defense (9)
├── E21 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 - Nimzo-Indian Defense: Three Knights Variation (8)
├── 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 (1)
├── 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)
├── 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 (1)
├── 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 (1)
├── 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 (3)
├── E46 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O - Nimzo-Indian Defense: Normal Variation (8)
├── 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 (11)
├── 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 (1)
├── 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 (0)
├── 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 (6)
├── 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)