1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. a3 Bxc5 7. Nf3 b6 - Nimzo-Indian Defense: Classical Variation, Berlin Variation, Macieja System

Nimzo-Indian Defense: Classical Variation, Berlin Variation, Macieja System

Coups: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. a3 Bxc5 7. Nf3 b6