[Event "Interzonal-12a"]
[Site "Las Palmas"]
[Date "1982.07.26"]
[Round "11"]
[White "Karlsson, Lars"]
[Black "Timman, Jan H"]
[Result "1-0"]
[WhiteElo "2500"]
[BlackElo "2655"]

1. Nf3 c5 2. g3 Nc6 3. c4 g6 4. Bg2 Bg7 5. O-O Nh6 6. Nc3 O-O 7. a3 Rb8 8. Rb1 d6 9. b4 Bf5 10. d3 Qd7 11. Bf4 Ng4 12. Qc1 e5 13. Bg5 h6 14. h3 hxg5 15. hxg4 Bxg4 16. bxc5 Bxf3 17. Bxf3 g4 18. Be4 dxc5 19. Kg2 Ne7 20. Nd5 Nc8 21. Nc3 Ne7 22. Nd5 Nc6 23. Nc3 Nd4 24. Bd5 b5 25. Ne4 bxc4 26. Qxc4 Rb6 27. Nxc5 Qc7 28. Na4 Rxb1 29. Rxb1 Nxe2 30. Qxg4 Qd6 31. Qc4 Qxa3 32. Rb7 Qc1 33. Bxf7+ Kh7 34. Qh4+ Qh6 35. Bxg6+ Kxg6 36. Qe4+ Kf6 37. Qxe2 Rh8 38. Qf3+ Kg6 39. Qc6+ Bf6 40. Qe4+ Kg5 41. f4+ 1-0