[Event "Vidmar mem"]
[Site "Ljubljana/Portoroz"]
[Date "1973.??.??"]
[Round "4"]
[White "Portisch, Lajos"]
[Black "Parma, Bruno"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "E55"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 O-O 6.Nf3 d5 7.O-O dxc4 8.Bxc4 Nbd7
9.Qe2 cxd4 10.exd4 b6 11.d5 Bxc3 12.dxe6 Bb4 13.exd7 Qxd7 14.a3 Bd6 15.Bg5 Re8
16.Qd3 Bc5 17.Qb3 Bb7 18.Bxf6 gxf6 19.Rad1 Qc7 20.Bd5 Rad8 21.Bxb7 Rxd1 22.Qxd1 Qxb7
23.Qd2 Qe4 24.h3 a5 25.Re1 Qa4 26.Rxe8+ Qxe8 27.Nh2 h5 28.Nf1 Qe5 29.a4 Kg7
30.Nh2 Qe4 31.Qd1 Qe5 32.b3 Qe4 33.Nf3 Qf5 34.Kf1  1/2-1/2

