[Event "USSR"] [Site "USSR"] [Round "15"] [White "Lev Polugaevsky"] [Black "Nikolai V Krogius"] [Result "1/2-1/2"] [ECO "A13"] [Opening "English: 1...e6 2.g3 d5"] 1.c4 e6 2.g3 d5 3.Bg2 Nf6 4.Nf3 Be7 5.O-O O-O 6.d4 dxc4 7.Qc2 a6 8.a4 Nc6 9.Qxc4 Qd5 10.Qd3 Rd8 11.Nc3 Qh5 12.Qc4 Nd5 13.a5 Bd7 14.e4 Nxc3 15.bxc3 Nxa5 16.Qxc7 Nb3 17.Rb1 Nxc1 18.Rfxc1 Ba3 19.Rc2 Bd6 20.Qb6 Rac8 21.c4 Bc7 22.Qb2 b5 23.cxb5 Qxb5 24.Qxb5 axb5 25.Bf1 Ba5 26.Rxc8 Rxc8 27.Ne5 Be8 28.Bxb5 Rb8 29.Nc4 Bc3 30.Nd6 Bd7 31.Rc1 Bb4 32.Bxd7 Bxd6 33.Rc6 Be7 34.Rc7 Bd8 35.Rc4 Kf8 36.Kg2 Rb2 37.Ba4 Ke7 38.Kf3 Bb6 39.e5 f6 40.exf6+ gxf6 41.Bc2 h6 42.Ke4 Ba5 43.Rc5 Bb6 44.Rc4 Ba5 45.Kd3 Rb4 46.Rc6 Bb6 47.Kc3 Kd7 48.d5 exd5 49.Rxf6 Bd4+ 50.Kxb4 Bxf6 51.Kc5 Ke6 52.Bb3 Be7+ 53.Kd4 Bf6+ 54.Ke3 Ke5 55.Kf3 Bd8 56.Kg4 Kf6 57.Kh5 Kg7 58.h4 Bb6 59.f3 Bc7 60.g4 d4 61.Bc4 d3 62.Bxd3 Bd6 63.g5 hxg5 64.hxg5 Bc7 65.Kg4 Bd6 66.f4 Bc7 67.f5 Bd8 {#d} 1/2-1/2