[Event "Zonal tournament"]
[Site "Ibarra ECU"]
[Date "1978.08.09"]
[EventDate "?"]
[Round "13"]
[Result "0-1"]
[White "Marcel Sisniega"]
[Black "Craig van Tilbury"]
[ECO "B53"]
[WhiteElo "2455"]
[BlackElo "2375"]
[PlyCount "96"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Bd7 5.b3 Nc6 6.Qe3 Nf6 7.Bb2
g6 8.Be2 Bg7 9.O-O O-O 10.c4 Qa5 11.Rd1 Ng4 12.Qc1 Qc5 13.Rf1
Bh6 14.Qc3 f6 15.Nbd2 Bf4 16.Rad1 a5 17.Nb1 Nce5 18.h3 Nh6
19.Ba3 Qc8 20.Ne1 Nhf7 21.Nc2 Ng5 22.g3 Nxe4 23.Qd4 Bc6 24.Bg4
Nxg4 25.gxf4 Nh6 26.Kh2 Qf5 27.Qe3 Qh5 28.f3 Qh4 29.Rd5 Qg3+
30.Kh1 Qxh3+ 31.Kg1 Ng3 32.Nd2 Bxd5 33.cxd5 Nhf5 34.Qe6+ Kg7
35.Ne3 Qh1+ 36.Kf2 Qh2+ 37.Ng2 Nh1+ 38.Rxh1 Qxh1 39.Bb2 Rac8
40.Ne3 Qh2+ 41.Ke1 Qh4+ 42.Ke2 Nxe3 43.Qxe3 Qh2+ 44.Kd3 Rf7
45.Bd4 Rc1 46.Bc3 h5 47.f5 Rxc3+ 48.Kxc3 Qe5+ 0-1