[Event "HUN-ch"]
[Site "?"]
[Date "1975.??.??"]
[Round "?"]
[White "Portisch, Lajos"]
[Black "Lengyel, Levente"]
[Result "1/2-1/2"]
[WhiteElo "2635"]
[BlackElo "2410"]
[ECO "A34"]

1.c4 c5 2.Nf3 Nf6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nb4 6.Bc4 e6 7.O-O N4c6 8.d3 Be7
9.Be3 O-O 10.a3 b6 11.Qd2 Bb7 12.Rfd1 Nd7 13.d4 cxd4 14.Nxd4 Nde5 15.Nxc6 Bxc6
16.Qe2 Qc8 17.Ba6 Bb7 18.Bxb7 Qxb7 19.Qb5 Ng4 20.Bf4 Rfd8 21.Qe2 Nf6 22.e5 Ne8
23.Ne4 Rxd1+ 24.Rxd1 Rd8 25.Rxd8 Bxd8 26.Qd3 Qd5 27.Qxd5 exd5 28.Nc3 Nc7
29.Kf1 Kf8 30.Ke2 Ke8 31.Be3 Kd7 32.f4 Ke6 33.h3 g5 34.g3 gxf4 35.gxf4 Kf5
36.Kf3 f6 37.Bd4 Ne6 38.Ne2 Kg6 39.Ke3 fxe5 40.Bxe5 Bf6 41.Nd4 Nd8 42.b4 a6
43.f5+ Kf7 44.Bxf6 Kxf6 45.Kf4 Nf7 46.Ne6 Ke7 47.h4 Nd6 48.Nc7 d4 49.Ke5 Nc4+
50.Kxd4 Nxa3 51.Nxa6 Kf6 52.Ke4 Nb5 53.Nb8 Nc3+ 54.Kd4 Na4 55.Nd7+ Kxf5 56.b5 h5  1/2-1/2

