[Event "HUN-ch"]
[Site "Budapest"]
[Date "1971.??.??"]
[Round "13"]
[White "Lengyel, Levente"]
[Black "Portisch, Lajos"]
[Result "1-0"]
[WhiteElo "2485"]
[BlackElo "2630"]
[ECO "D76"]

1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d5 5.cxd5 Nxd5 6.d4 Nb6 7.Nc3 Nc6 8.e3 O-O
9.O-O a5 10.Qe2 Bg4 11.h3 Be6 12.Rd1 Nb4 13.Nd2 Qc8 14.Kh2 Rd8 15.Nde4 c6
16.b3 N4d5 17.Bb2 a4 18.Nxd5 Bxd5 19.Nc5 Bxg2 20.Kxg2 a3 21.Bc3 Nd5 22.Be1 b6
23.Na4 Qb7 24.Rac1 f5 25.Kh2 e5 26.dxe5 Bxe5 27.Nc3 Nf6 28.Qc4+ Kh8 29.f4 Bd6
30.e4 fxe4 31.Nxe4 Nxe4 32.Qxe4 Bf8 33.Bc3+ Bg7 34.Rxd8+ Rxd8 35.Rd1 Rc8
36.Qe6 Bxc3 37.Rd7 Qxd7 38.Qxd7 Rf8 39.Qe7 Kg8 40.Qxa3 Rd8 41.h4 Rd2+ 42.Kh3 c5  1-0

