1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Be7 - Queen's Indian Defense: Kasparov-Petrosian Variation, Marco Defense

Queen’s Indian Defense: Kasparov-Petrosian Variation, Marco Defense

Coups: 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Be7