[Event "Lone Pine"] [Site "Lone Pine, CA USA"] [Date "1976.03.12"] [Round "6"] [White "Robert Gruchacz"] [Black "Marcel Sisniega"] [Result "0-1"] [ECO "B54"] [Opening "Sicilian: Open, 2...d6, 4...Nf6"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Bb5+ Bd7 7.Bxd7+ Qxd7 8.Nde2 Nc6 9.Bg5 Be7 10.Bxf6 Bxf6 11.Nd5 Be7 12.Ng3 g6 13.Qd3 O-O 14.O-O Rac8 15.Rad1 Bg5 16.Ne2 Kh8 17.f3 f5 18.Rf2 Rf7 19.c3 Rcf8 20.Ng3 Nd8 21.Rc2 Ne6 22.b4 Bh6 23.Nf1 fxe4 24.Qxe4 Ng5 25.Qh4 Kg7 26.Ng3 Rxf3 27.Qc4 R3f7 28.Qd3 Qc6 29.Rf1 Ne6 30.Rxf7+ Rxf7 31.Ne4 Nd4 32.Rf2 Rxf2 33.Nxf2 Qxd5 34.cxd4 Qxd4 35.Qxd4 exd4 36.Ne4 Bf4 37.g3 Be5 38.Kf2 h6 39.Kf3 Kf7 40.Nf2 Ke6 41.Ke4 Bg7 42.Nd3 Be5 43.a4 h5 44.b5 g5 45.Nb4 g4 46.a5 d5+ 47.Nxd5 d3 48.Ne3 d2 49.Kd3 Kd6 50.Kxd2 Kc5 51.b6 a6 52.Kd3 Bd4 53.Nf5 Bg1 54.Ng7 Bxh2 55.Nxh5 Kb5 56.Ke2 Kxa5 57.Kf2 Kxb6 58.Nf6 a5 59.Nxg4 Bxg3+ 60.Kxg3 a4 61.Kf3 a3 62.Ne3 Kc5 63.Ke2 a2 64.Nc2 Kc4 65.Kd2 Kb3 {#R} 0-1