[Event "Reykjavik International-08"]
[Site "Reykjavik"]
[Date "1978.02.16"]
[Round "11"]
[White "Petursson, Margeir"]
[Black "Olafsson, Helgi"]
[Result "1/2-1/2"]
[WhiteElo "2350"]
[StudySync "canonical"]
[StudyEventSlug "reykjavik-1978"]
[StudyEventOrder "11"]

1. c4 Nf6 2. Nf3 c5 3. Nc3 d5 4. cxd5 Nxd5 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. Nxd5 Qxd5 9. d3 Nc6 10. Be3 Qd6 11. Rc1 Bxb2 12. Rxc5 Bg7 13. Qb3 Bd7 14. Rfc1 b6 15. Rd5 Qc7 16. Bf4 Qb7 17. Ne5 Bxe5 18. Rxe5 Rfe8 19. Rec5 Rac8 20. R5c2 e5 21. Be3 Kg7 22. Qb5 Re6 23. Bd5 Rf6 24. Bxc6 Rcxc6 25. Rxc6 Rxc6 26. Rxc6 Bxc6 27. Qxe5+ f6 28. Qd6 Qd7 29. Qf4 g5 30. Qb8 Qd5 31. f3 g4 32. Qf4 gxf3 33. Bd4 Qe6 34. e4 Kg6 35. Qxf3 Bd7 36. Qf4 f5 37. Be3 Kg7 38. Qg5+ Kf7 39. Bd4 Qg6 40. Qxg6+ Kxg6 41. Kf2 fxe4 42. dxe4 b5 43. Bxa7 b4 44. Bc5 Be6 45. Bxb4 Bxa2 46. Kf3 h5 47. g4 hxg4+ 48. Kxg4 Bb3 49. Kf4 Ba2 50. Ke5 Bb1 51. Kd5 Bc2 52. Be7 Bb1 53. h4 Bc2 54. Bd8 Bb1 55. Ke5 Bc2 56. Bg5 Bb1 57. Bd2 Bc2 58. Bc3 Kh5 59. Be1 Kg6 60. Kd5 Bb1 61. Bc3 Bc2 62. Bd4 Bb1 63. Bh8 Bc2 64. Bc3 Bb1 65. Bd4 Bc2 66. Bh8 Bb1 67. e5 Ba2+ 68. Kd6 Kf7 69. Bf6 Bb3 70. Bd8 Ba2 71. Ba5 Bb3 72. Bc3 Ba2 73. Kc5 Bb3 74. Kd4 Kg6 75. Kc5 Kf7 76. Kd6 Ba2 77. h5 Bb3 78. Bd4 Bd1 79. Bb2 Bb3 80. Bc3 Ba2 81. h6 Kg6 82. Bd2 Kf7 83. Bg5 Bb3 84. Bf6 Kg6 85. Bg5 Kf7 1/2-1/2