开局

Queen's Indian Defense: Fianchetto, Classical, Polugaevsky Gambit

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.d5 exd5 8.Nh4
顶级棋手