[Event "Lone Pine op"]
[Site "Lone Pine"]
[Date "1978.??.??"]
[Round "4"]
[White "Olafsson, Helgi"]
[Black "Evans, Larry Melvyn"]
[Result "1/2-1/2"]
[WhiteElo "2420"]
[BlackElo "2530"]
[ECO "E97"]

1.c4 Nf6 2.Nf3 g6 3.Nc3 Bg7 4.e4 d6 5.d4 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7
9.b4 Ne8 10.c5 f5 11.Nd2 Nf6 12.f3 f4 13.Nc4 g5 14.a4 Rf7 15.Ba3 Bf8 16.b5 Ng6
17.b6 dxc5 18.bxc7 Qxc7 19.Rb1 Rg7 20.d6 Qf7 21.Rb5 b6 22.a5 Be6 23.Qa4 Qe8
24.axb6 axb6 25.Qc2 Kh8 26.Bb2 g4 27.Nxb6 Rd8 28.Ncd5 Bxd5 29.d7 Nxd7 30.Nxd5 gxf3
31.Bxf3 Bd6 32.Qd3 Ndf8 33.Rb6 c4 34.Qxc4 Rc8 35.Qb5 Bc5+ 36.Kh1 Bxb6 37.Qxb6 Rb8
38.Qf2 Rgb7 39.Bc3 Rb1 40.h3 Rxf1+ 41.Qxf1 Qb5 42.Qf2 Qd3 43.Qc5 Re8 44.Nxf4 Qb1+
45.Kh2 Qb7 46.Nd3 Qe7 47.Qa5 Qg5 48.Bg4 h5 49.Bf5 h4 50.Qd5 Qf6 51.Qa5 Kg7  1/2-1/2

