[Event "5th World Open"]
[Site "Philadelphia, PA USA"]
[Date "1977.06.30"]
[EventDate "?"]
[Round "1"]
[Result "1/2-1/2"]
[White "Sunil Weeramantry"]
[Black "Lawrence Day"]
[ECO "B23"]
[WhiteElo "2250"]
[BlackElo "2367"]
[PlyCount "92"]

1.e4 c5 2.Nc3 Nc6 3.f4 e6 4.Nf3 Nge7 5.d4 cxd4 6.Nxd4 a6 7.Be3
b5 8.Bd3 Nxd4 9.Bxd4 Nc6 10.Be3 Bb7 11.O-O Qc7 12.Qe2 Be7
13.Qf2 Na5 14.f5 exf5 15.Bb6 Qc6 16.Nd5 Bd8 17.Bxd8 Kxd8 18.b4
Nc4 19.Bxc4 bxc4 20.Qxf5 f6 21.Qg4 Re8 22.Rae1 Qd6 23.Qxg7
Bxd5 24.exd5 Rxe1 25.Rxe1 Kc7 26.c3 a5 27.Qg4 Qxd5 28.Re4 Rg8
29.Rxc4+ Kd8 30.Qe2 Rxg2+ 31.Qxg2 Qxc4 32.Qa8+ Ke7 33.Qxa5
Qxc3 34.a4 Qe1+ 35.Kg2 Qd2+ 36.Kg1 d5 37.Qc7+ Ke6 38.Qc6+ Ke5
39.Qe8+ Kf4 40.Qb8+ Ke4 41.a5 d4 42.Qb7+ Kf4 43.Qc7+ Kf3
44.Qg3+ Ke4 45.Qg2+ Qxg2+ 46.Kxg2 Kd5 1/2-1/2