[Event "Las Palmas-05"]
[Site "Las Palmas"]
[Date "1976.??.??"]
[Round "5"]
[White "Geller, Efim P"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2620"]
[BlackElo "2625"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O Be6 9. Be3 Nbd7 10. a4 O-O 11. a5 Rc8 12. Qd2 Nc5 13. Nxc5 dxc5 14. Qxd8 Rfxd8 15. f3 c4 16. Na4 Nd7 17. Rfd1 Bb4 18. Nc3 Bc5 19. Kf2 Kf8 20. Nd5 Bxe3+ 21. Kxe3 Rc5 22. Nc3 1/2-1/2