Selected Openings 17 Four Knight’s Game

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 

4.Bb5 Bb4{4...Nd4 5.Nxd4(5.Ba4 Bc5 6.Nxe5 0-0 7.Nd3 Bb6 8.e5 c6 9.exf6 Re8+ 10.Kf1 Qf6 11.g3 d5 12.h3 Bf5 13.Nf4 Ne6 14.d4 Bxd4 15.Kg2 Bxc3 16.bxc3 Qxc3 17.Nxe6 Qxa1±)5... exd4 6.e5 dxc3 7.exf6 Qxf6 8.dxc3 Qe5+ 9.Qe2 Qxe2+ 10.Kxe2  =} 5.0-0 0-0 (5...d6 6.Nd5 Ba5 7.d4 Nxe4 8.dxe5 Be6 9.Nf4 0-0 10.Qe2 Nc5 11.Nxe6 Nxe6 12.Rd1 Qe7 13.exd6 cxd6+) 6.d3 d6 7.Bg5 Bg4 (7...Bxc3 8.bxc3 h6 9.Be3 Bd7 10.h3 a6 11.Ba4 b5 12.Bb3 Qe7 13.Qe2 a5 14.Bd5 a4 15.Rab1 Rab8 =) 8.Nd5 Nd4 9.Bxf6 gxf6 10.Nxb4 Bxf3 11.gxf3 Nxb5 12.Kh1 Kh8 13.Rg1 Rg8 14.Rxg8+ Qxg8 =