[Event "Ottawa op"]
[Site "Ottawa CAN"]
[Date "1985.06.09"]
[Round "5"]
[White "Lalonde, Mario"]
[Black "Cohen, David"]
[Result "0-1"]
[WhiteElo "1617"]
[BlackElo "1675"]
[PlyCount "80"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e5 7.Nb3 Be6 8.Bd3 Be7 9.f3 d5 10.exd5 Nxd5 11.Ne4 O-O 12.Nbc5 Bxc5 13.Nxc5 Qa5+ 14.c3 Qxc5 15.Qc2 g6 16.g4 Ne3 17.Bxe3 Qxe3+ 18.Be2 Bc4 19.h4 Qxe2+ 20.Qxe2 Bxe2 21.Kxe2 Rfd8 22.g5 Rd6 23.h5 Rad8 24.hxg6 Rd2+ 25.Ke3 fxg6 26.b3 Rc2 27.Rhc1 Rdd2 28.Rxc2 Rxc2 29.c4 Kf7 30.a3 Ke6 31.Rh1 Kf5 32.Rxh7 Rc3+ 33.Kf2 Rxb3 34.Kg3 Kxg5 35.Kg2 Nd4 36.Rf7 a5 37.c5 Ne6 38.Re7 Kf6 39.Rd7 Nxc5 40.Rd6+ Kf5 0-1