[Event "Vidmar mem"]
[Site "Ljubljana/Portoroz"]
[Date "1973.??.??"]
[Round "17"]
[White "Portisch, Lajos"]
[Black "Quinteros, Miguel A"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "E18"]

1.Nf3 Nf6 2.c4 e6 3.d4 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Nxe4 Bxe4
9.Ne1 Bxg2 10.Nxg2 d5 11.Qa4 Qd7 12.Qxd7 Nxd7 13.cxd5 exd5  1/2-1/2

