[Event "Yerevan"]
[Site "Yerevan"]
[Date "1965.??.??"]
[Round "13"]
[White "Portisch, Lajos"]
[Black "Stahlberg, Gideon"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "D37"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bf4 O-O 6.e3 c5 7.dxc5 Bxc5 8.a3 dxc4
9.Bxc4 Qxd1+ 10.Rxd1 a6 11.O-O b5 12.Be2 Bb7 13.Bd6 Bxd6 14.Rxd6 Nc6  1/2-1/2

