[Event "Interzonal-13c"]
[Site "Biel"]
[Date "1985.07.07"]
[Round "5"]
[White "Partos, Charles"]
[Black "Petursson, Margeir"]
[Result "1/2-1/2"]
[WhiteElo "2425"]
[BlackElo "2550"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. dxc5 Bxc5 10. Na4 Be7 11. Be3 Re8 12. Rc1 Bg4 13. Nc5 Bxc5 14. Bxc5 Qd7 15. Re1 Rad8 16. Nd4 h5 17. Nxc6 bxc6 18. Bd4 Nh7 19. Qd2 Nf8 20. f3 Bf5 21. Qa5 Rb8 22. b3 Rb7 23. Bf2 Ng6 24. Qc3 Rc7 25. Rcd1 Qe7 26. Bc5 Qg5 27. Bd4 Nf8 28. f4 Qg4 29. Bf3 Qg6 30. Bxd5 Ne6 31. Bg2 Rce7 32. Bf2 Be4 33. Bxe4 Qxe4 34. Qd3 Qb4 35. Rc1 c5 36. Rc4 Qa5 37. Qc3 Qb6 38. e4 Qb7 39. e5 h4 40. gxh4 Rd7 41. Qg3 Red8 42. f5 Rd3 43. Qg2 Qxg2+ 44. Kxg2 Nd4 45. Bxd4 cxd4 46. Re2 Rd1 47. Re4 d3 48. Red4 Re8 49. Rc5 Rd2+ 50. Kf3 Rxa2 51. Rxd3 Rxh2 52. Kg4 Re2 53. Kf4 Rh2 54. Rc7 Rxh4+ 55. Kg5 Rh1 56. Rxa7 Rg1+ 57. Kf4 Rf1+ 58. Kg4 Rg1+ 59. Kf4 Rf1+ 60. Kg4 1/2-1/2