[Event "Reykjavik International-04"]
[Site "Reykjavik"]
[Date "1970.01.19"]
[Round "5"]
[White "Sigurjonsson, Gudmundur"]
[Black "Olafsson, Fridrik"]
[Result "1-0"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nf3 Be7 7. Be2 O-O 8. O-O Bf6 9. Nc3 Nc6 10. b3 Bg4 11. Be3 d5 12. c5 Nc8 13. h3 Be6 14. Qd2 h6 15. Nh2 N8e7 16. Ng4 Nf5 17. Nxf6+ Qxf6 18. Rad1 Rad8 19. Kh2 Rfe8 20. Bb5 Nh4 21. Bxc6 bxc6 22. Bf4 Qf5 23. Bxc7 Nxg2 24. Kxg2 Qxh3+ 25. Kg1 Rc8 26. Bg3 Bg4 27. Qd3 h5 28. Rde1 h4 29. Re3 Bf5 30. Qe2 Rxe3 31. Qxe3 hxg3 32. fxg3 Qh5 33. Qe5 g6 34. Rf4 Qh6 35. Qe7 Qh3 36. Qe3 Qh6 37. Qe7 Qg7 38. g4 Bd3 39. Rf6 g5 40. Kg2 Rf8 41. Rxc6 Qxd4 42. Qxg5+ Bg6 43. Nxd5 Qe4+ 44. Kf2 Qd4+ 45. Ne3 Qd2+ 46. Kg3 Re8 47. Rxg6+ fxg6 48. Qxg6+ Kf8 49. Qf6+ Kg8 50. Qg5+ Kf8 51. Qf4+ Kg8 52. Nf5 Qe1+ 53. Qf2 Qe5+ 54. Kh4 Kh7 55. Nd6 Qe1 56. Qxe1 Rxe1 57. c6 1-0