[Event "Biel Interzonal"] [Site "Biel SUI"] [Date "1985.07.14"] [EventDate "1985.07.01"] [Round "10"] [Result "1-0"] [White "Lev Polugaevsky"] [Black "Yasser Seirawan"] [ECO "D52"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "83"] 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Nbd7 5. Bg5 c6 6. e3 Qa5 7. cxd5 Nxd5 8. Qd2 N7b6 9. Bd3 Nxc3 10. bxc3 Nd5 11. O-O Qxc3 12. Qe2 Be7 13. Bxe7 Nxe7 14. Ne5 Ng6 15. Bxg6 hxg6 16. Qf3 O-O 17. h4 Qa5 18. h5 gxh5 19. Rac1 g6 20. g4 hxg4 21. Qxg4 Kg7 22. Kg2 Qd5+ 23. f3 Bd7 24. Rh1 Rh8 25. Qf4 f6 26. Ng4 Raf8 27. Rxh8 g5 28. Rh7+ Kxh7 29. Qh2+ Kg8 30. Qh6 Kf7 31. Nxf6 Qd6 32. Rh1 Ke7 33. Qxg5 Kd8 34. Nxd7+ Kxd7 35. Rh7+ Kc8 36. Qg7 Kd8 37. Qxb7 Rg8+ 38. Kf1 Rg1+ 39. Ke2 Rg2+ 40. Kd1 Rg1+ 41. Kc2 Rg2+ 42. Kd3 1-0