[Event "Palma de Mallorca"]
[Site "Palma de Mallorca"]
[Date "1971.??.??"]
[Round "15"]
[White "Keene, Raymond D"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "D91"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bg5 Ne4 5.Bh4 c5 6.e3 Nxc3 7.bxc3 Bg7 8.cxd5 cxd4
9.exd4 Qxd5 10.Nf3 Nc6 11.Be2 O-O 12.O-O b6 13.Re1 Bb7 14.c4 Qd7 1/2-1/2