[Event "HUN-ch"]
[Site "Budapest"]
[Date "1971.??.??"]
[Round "10"]
[White "Portisch, Lajos"]
[Black "Bilek, Istvan"]
[Result "0-1"]
[WhiteElo "2630"]
[BlackElo "2490"]
[ECO "A44"]

1.c4 c5 2.Nf3 g6 3.d4 Bg7 4.d5 e5 5.Nc3 d6 6.e4 Nd7 7.g3 Ne7 8.h4 Nf6 9.Nh2 Nfg8
10.g4 h5 11.g5 f5 12.gxf6 Nxf6 13.Nf3 O-O 14.Ng5 Nh7 15.Be2 Bd7 16.Be3 a6
17.Qd2 Nxg5 18.Bxg5 Kh7 19.Rg1 Rf7 20.a4 Qf8 21.Nd1 Ng8 22.Ra3 Nf6 23.Qc2 Be8
24.a5 Rb8 25.Rag3 b6 26.axb6 Rxb6 27.Bd2 Ra7 28.Bd3 Rb8 29.Bf1 Qe7 30.Bh3 Qd8
31.Be6 Re7 32.f3 Nd7 33.Bg5 Qa5+ 34.Kf1 Rxe6 35.dxe6 Nf8 36.Bd2 Qd8 37.Bg5 Bf6
38.Ne3 Nxe6 39.Nd5 Bxg5 40.hxg5 Bc6 41.Nf6+ Kg7 42.R1g2 Qa5 43.Kg1 h4 44.Rg4 Qa1+
45.Kh2 Nd4 46.Qf2 Rb3 47.Rxh4 Nxf3+ 48.Kg3 Ng1+ 49.Kh2 Nf3+ 50.Kg3 Nxh4+
51.Kxh4 Bd7 52.Nh5+ Kg8 53.Nf6+ Kh8 54.Ng4 Qh1+ 55.Rh2 Qf3  0-1

