[Event "Las Palmas"] [Site "Las Palmas ESP"] [Date "1974.05.04"] [EventDate "1974.04.15"] [Round "15"] [Result "1/2-1/2"] [White "Fridrik Olafsson"] [Black "Ulf Andersson"] [ECO "B83"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "41"] 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O a6 8.f4 Qc7 9.a4 Nc6 10.Be3 O-O 11.Qe1 Bd7 12.Qg3 Rac8 13.Kh1 Nb4 14.e5 Nfd5 15.Nxd5 Nxd5 16.f5 dxe5 17.Bh6 Bf6 18.fxe6 exd4 19.exd7 Rcd8 20.Qxc7 Nxc7 21.Rxf6 1/2-1/2