1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 cxd4 6. exd4 O-O 7. c5 - Nimzo-Indian Defense: Rubinstein System, Rubinstein Variation, Sherbakov Attack

Nimzo-Indian Defense: Rubinstein System, Rubinstein Variation, Sherbakov Attack

Coups: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 cxd4 6. exd4 O-O 7. c5