[Event "Bugojno"] [Site "Bugojno"] [Date "1978.??.??"] [Round "4"] [White "Byrne, Robert E"] [Black "Spassky, Boris V"] [Result "0-1"] [WhiteElo "2550"] [BlackElo "2630"] [ECO "B81"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 Be7 7.g5 Nfd7 8.Rg1 Nc6 9.Be3 O-O 10.Rg3 a6 11.Qh5 Re8 12.O-O-O g6 13.Qh4 Bf8 14.f4 h6 15.f5 Nde5 16.f6 Bd7 17.gxh6 Kh7 18.Nce2 Qc7 19.Nf4 Rec8 20.c3 b5 21.Nh3 b4 22.Ng5+ Kh8 23.Bf4 Be8 24.Nxc6 Bxc6 25.Kb1 a5 26.c4 Be8 27.Rc1 a4 28.Be2 b3 29.a3 Qd8 30.Nf3 Nxf3 31.Rxf3 Kh7 32.Bg5 Qa5 33.Rg3 d5 34.exd5 exd5 35.Qf4 Bd7 36.Rgc3 Bf5+ 37.Bd3 Rxc4 38.Qd2 Rxc3 39.bxc3 Bxa3 40.Rf1 Bxd3+ 41.Qxd3 Bd6 0-1