开局

English Opening: Caro-Kann Defensive System

1.c4 c6 2.g3 Nf6 3.Bg2 d5 4.Nf3 Bf5 5.O-O e6 6.cxd5 exd5 7.d3 Be7 8.Qb3 Qb6 9.Qc2
顶级棋手