Spassky, Boris V - Aftonov Leningrad, 1949 [D28] 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 c5 5.Bxc4 e6 6.O-O a6 7.Qe2 b5 8.Bb3 Nc6 9.Nc3 cxd4 10.Rd1 Bb7 11.exd4 Nb4 12.d5 Nbxd5 13.Bg5 Be7 14.Bxf6 gxf6 15.Nxd5 Bxd5 16.Bxd5 exd5 17.Nd4 Kf8 18.Nf5 h5 19.Rxd5 Qxd5 20.Qxe7+ Kg8 21.Qxf6 1-0