[Event "HUN-ch"]
[Site "Budapest HUN"]
[Date "1971.10.29"]
[EventDate "?"]
[Round "11"]
[Result "0-1"]
[White "Janos Flesch"]
[Black "Lajos Portisch"]
[ECO "A07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "92"]

1.Nf3 Nf6 2.g3 b5 3.Bg2 Bb7 4.d3 e6 5.O-O d6 6.e4 Nbd7 7.Nc3
a6 8.Bd2 Be7 9.Qe2 c5 10.Ne1 Qb6 11.f4 b4 12.Na4 Qc7 13.g4 h6
14.Bf3 Nh7 15.a3 a5 16.c3 Bc6 17.Qd1 O-O 18.Ng2 Qb7 19.axb4
axb4 20.cxb4 cxb4 21.b3 Bf6 22.Rb1 Bd4+ 23.Kh1 e5 24.Ne3 Bxe3
25.Bxe3 exf4 26.Bxf4 Ne5 27.Bg2 Rfe8 28.h3 Ng5 29.Kh2 Qb5
30.Nb2 d5 31.h4 Nh7 32.Bxe5 Rxe5 33.d4 Rxe4 34.Bxe4 dxe4
35.Nc4 h5 36.g5 Qb8+ 37.Ne5 Ra2+ 38.Kg1 e3 39.Rf3 e2 40.Qd3
Bxf3 41.Qxf3 Qa7 42.Qd3 Nf8 43.Kf2 Ne6 44.Ke3 Nxd4 45.Ke4 Ne6
46.Qc4 Rd2 0-1