[Event "Amsterdam Interzonal"]
[Site "Amsterdam"]
[Date "1964.??.??"]
[Round "3"]
[White "Lengyel, Levente"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "D27"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.a4 cxd4 8.exd4 Nc6
9.Nc3 Be7 10.Be3 O-O 11.Ne5 Qc7 12.Nxc6 bxc6 13.Rc1 Bb7 14.Be2 Rfd8 15.Qc2 Rac8
16.Qb3 Rb8 17.Qc2 Rbc8  1/2-1/2

