[Event "Nimzo-Indian Defense: Classical Variation"]
[Site "https://chessily.com/openings/"]
[Result "*"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 (4... c5 5. dxc5 O-O (5... Bxc3+) 6. a3 Bxc5 7. Nf3 b6) (4... O-O 5. a3 (5. e3 d5 6. Nf3 c5) Bxc3+ 6. Qxc3 b6 (6... b5)) (4... Nc6 5. Nf3 d6) 5. a3 (5. cxd5 Qxd5 (5... exd5) 6. Nf3 Qf5 7. Qd1 e5) Bxc3+ 6. Qxc3 Ne4 (6... Nc6) (6... c5) 7. Qc2 c5 (7... Nc6 8. e3 e5) *
