[Event "Belgrade URS-World"]
[Site "Belgrade"]
[Date "1970.??.??"]
[Round "2.3"]
[White "Portisch, Lajos"]
[Black "Kortschnoj, Viktor"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "E55"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 Nbd7
9.Qb3 a6 10.a4 Ba5 11.Rd1 cxd4 12.exd4 Qb6 13.Qc2 Qc7 14.Bd3 h6 15.Bd2 Bb4
16.Qb3 Bd6 17.Rac1 Qd8 18.Bb1 b6 19.Ne5 Bb7 20.Bf4 Qe7 21.Re1 Rfe8 22.Qc2 Rac8
23.Nxd7 Qxd7 24.Be5 Qd8 25.Bxf6 Qxf6 26.Qh7+ Kf8 27.d5 Ke7 28.Rcd1 Rh8 29.Qd3 Rhd8
30.Qe2 Bc5 31.Ba2 Kf8  1/2-1/2

