[Event "Belgrade URS-World"]
[Site "Belgrade"]
[Date "1970.??.??"]
[Round "1.3"]
[White "Kortschnoj, Viktor"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "C95"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O
9.h3 Nb8 10.d4 Nbd7 11.Nbd2 Bb7 12.Bc2 Re8 13.b3 Bf8 14.Bb2 g6 15.a4 Bg7
16.Bd3 c6 17.Qc2 Rc8 18.dxe5 dxe5 19.b4 Bf8 20.Red1 Qb6 21.Qb3 c5 22.axb5 axb5
23.bxc5 Bxc5 24.Qxb5 Bxf2+ 25.Kf1 Re7 26.Qxb6 Bxb6 27.Ba6 Bxa6+ 28.Rxa6 Be3
29.Ke2 Bc5 30.g4 Rb8 31.Ra2 Nf8 32.c4 N6d7 33.Kf1 f6 34.Nb1 Nb6 35.Nfd2 Rd7
36.Rc1 Ne6 37.Ba3 Rd3 38.Rc3 Rbd8 39.Bxc5 Nxc5 40.Rxd3 Rxd3 41.Ra5 Nbd7 42.Ra3 Rd4
43.Re3 Nb6 44.Ke2 Nxc4 45.Nxc4 Rxc4 46.Nc3 Kg7 47.Kf3 Ne6 48.h4 Nd4+ 49.Kf2 Rb4
50.Nd1 Ra4 51.Kg3 h5 52.Nf2 Ra2 53.g5 fxg5 54.hxg5 h4+ 55.Kg2 Ne6 56.Kf3 Nxg5+
57.Kg4 Nf7 58.Rf3 g5 59.Kh5 Ra8 60.Rb3 Rh8+ 61.Kg4 Rh6 62.Nh3 Rf6 63.Rb8 Rd6
64.Kh5 Rh6+ 65.Kg4 Rd6 66.Kh5 Kf6 67.Rb2 Kg7 68.Rb8  1/2-1/2

