[Event "Interzonal-13c"]
[Site "Biel"]
[Date "1985.07.02"]
[Round "1"]
[White "Vaganian, Rafael A"]
[Black "Petursson, Margeir"]
[Result "1-0"]
[WhiteElo "2625"]
[BlackElo "2550"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nf6 6. Bg2 Be7 7. O-O O-O 8. Nc3 Nc6 9. Bg5 cxd4 10. Nxd4 Re8 11. Rc1 h6 12. Be3 Bg4 13. h3 Be6 14. Kh2 Qd7 15. Nxc6 bxc6 16. Na4 Bf5 17. Bc5 Bd6 18. e3 Be4 19. f3 Bg6 20. Qd2 h5 21. h4 Bxc5 22. Nxc5 Qe7 23. Rc3 Bf5 24. Nb3 Bd7 25. Rfc1 Rac8 26. Qd4 Rb8 27. Qd2 Qb4 28. Re1 Rec8 29. Re2 Qb6 30. Nc5 Bf5 31. Qd4 Nd7 32. Rd2 Nxc5 33. Rxc5 a5 34. Bf1 Qb4 35. Be2 Rb6 36. Qxb4 axb4 37. e4 Be6 38. exd5 cxd5 39. Rxc8+ Bxc8 40. Rxd5 Be6 41. Rd8+ Kh7 42. Bd3+ g6 43. b3 Rc6 44. Rd4 Bf5 45. Bxf5 gxf5 46. g4 fxg4 47. fxg4 hxg4 48. Rxg4 Rc2+ 49. Kg3 Rxa2 50. Rxb4 Kg6 51. Rb5 f5 52. Rb6+ Kg7 53. h5 Ra1 54. h6+ Kh7 55. b4 Rf1 56. b5 Kg8 57. Rf6 1-0