开局

English Opening: Symmetrical, Three Knights System

1.c4 c5 2.Nc3 Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.g3 g6 6.Bg2 Bg7 7.O-O O-O 8.Nxd5 Qxd5 9.d3 Nc6
顶级棋手