[Event "Manila Interzonal"]
[Site "Manila"]
[Date "1990.??.??"]
[Round "7"]
[White "Portisch, Lajos"]
[Black "Yudasin, Leonid"]
[Result "0-1"]
[WhiteElo "2590"]
[BlackElo "2615"]
[ECO "A17"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 c5 4.g3 b6 5.e4 Bb7 6.d3 Be7 7.Bg2 O-O 8.O-O d6 9.h3 a6
10.b3 Bc6 11.Bb2 b5 12.e5 dxe5 13.Nxe5 Bxg2 14.Kxg2 Qb6 15.Qf3 Nbd7 16.Qc6 Rab8
17.Qxb6 Rxb6 18.f4 Rd8 19.Rad1 Ne8 20.g4 Nb8 21.Rfe1 f6 22.Nf3 Kf7 23.Ne4 Nd6
24.Ned2 Nc6 25.Ba3 Nb7 26.Ne4 Nb4 27.Bxb4 cxb4 28.f5 exf5 29.gxf5 a5 30.d4 bxc4
31.bxc4 a4 32.c5 Rb5 33.Rd2 Na5 34.Rde2 Bf8 35.Rc1 b3 36.axb3 axb3 37.Rb2 Rb4
38.Ned2 Rd5 39.Ra1 Rb5 40.Ne4 Nc4 41.Ra7+ Kg8 42.Nc3 Nxb2 43.Nxb5 Nc4 44.Nc3 b2
45.Rb7 Rxf5 46.c6 Bd6 47.Nb1 Ra5 48.Nfd2 Nxd2 49.Nxd2 Ra4 50.Rd7 Rxd4 51.Nb1 Rd3
52.c7 Rg3+ 53.Kh2 Bxc7 54.Rxc7 Rb3 55.h4 Rb5 56.Kg3 h5 57.Kh3 Kh7 58.Kg3 Rb6
59.Rc4 g5 60.hxg5 fxg5 61.Kg2 Kg6 62.Rc5 Rb4 63.Kh2 h4 64.Kg2 Kh5 65.Kh3 Rb3+
66.Kg2 h3+ 67.Kh2 Kh4 68.Rc8 Re3 69.Rc4+ g4 70.Rb4 Re2+ 71.Kh1 Kg5 72.Nc3 Rc2
73.Ne4+ Kg6 74.Rb6+ Kf7 75.Nd6+ Kf8 76.Rb8+ Kg7 77.Nf5+ Kg6 78.Ne3 Rc1+ 79.Kh2 b1=Q
80.Rxb1 Rxb1 81.Nxg4 Kg5  0-1

