[Event "World op"]
[Site "Philadelphia"]
[Date "1990.??.??"]
[Round "1"]
[White "West, Guy"]
[Black "Christiansen, Larry Mark"]
[Result "0-1"]
[WhiteElo "2330"]
[BlackElo "2560"]
[ECO "B42"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Bc5 6.Nb3 Ba7 7.Qe2 Nc6 8.Be3 Nge7
9.Nc3 d6 10.O-O-O O-O 11.h4 b5 12.Rdg1 b4 13.Nd1 a5 14.Kb1 a4 15.Nd2 Ne5
16.g4 Nxd3 17.Qxd3 Qc7 18.h5 Ba6 19.Qxa6 Bxe3 20.Qc4 Qxc4 21.Nxc4 Bc5 22.Re1 Rfd8
23.Nde3 a3 24.b3 Nc6 25.Rd1 Nd4 26.Rd2 Nb5 27.Nd1 f6 28.Rh3 d5 29.Rhd3 Nc3+
30.Nxc3 bxc3 31.Rd1 Bxf2 32.exd5 exd5 33.Ne3 d4 34.Nf5 Re8 35.Nxd4 Rad8 36.Nb5 Rxd3
37.cxd3 Re2 38.Nxc3 Rb2+ 39.Ka1 Bd4 40.Rc1 Be5 41.d4 Bxd4 42.Nb5 Be5 43.Rc8+ Kf7
44.Nc3 Rc2 45.Kb1 Rxc3 46.Rxc3 Bxc3 47.Kc2 Be1 48.Kd3 Ke6 49.Kc4 f5 50.gxf5+ Kxf5
51.b4 Kg5 52.b5 Kxh5  0-1

