開局

Queen's Indian Defense: Kasparov Variation, Petrosian Variation

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.cxd5 Nxd5 7.Qc2 Nxc3 8.bxc3
頂尖棋手