[Event "Reykjavik"]
[Site "Reykjavik"]
[Date "1957.??.??"]
[Round "4"]
[White "Gudmundsson, Arinbjorn"]
[Black "Olafsson, Fridrik"]
[Result "0-1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Qa4 Be7 6. Nc3 Bb7 7. Bg2 O-O 8. O-O Ne4 9. Qc2 Nxc3 10. Qxc3 f5 11. b3 Bf6 12. Bb2 d6 13. Qd2 Qe7 14. Rac1 Nd7 15. Rfd1 Be4 16. Ne1 Bg5 17. f4 Bxg2 18. Kxg2 Bh6 19. Nf3 Nf6 20. e3 Rae8 21. Qc2 Qf7 22. Re1 a5 23. a3 Re7 24. Qe2 Qe8 25. Kg1 g6 26. Qg2 Bg7 27. Rcd1 Ne4 28. Nd2 d5 29. Nxe4 fxe4 30. Qc2 g5 31. Kh1 Bf6 32. Rg1 Rg7 33. Rc1 Kh8 34. Qe2 Rfg8 35. Rcf1 c6 36. b4 axb4 37. axb4 gxf4 38. gxf4 Rxg1+ 39. Rxg1 Rxg1+ 40. Kxg1 Qg6+ 41. Kf1 dxc4 42. Qxc4 Qg4 43. Qe2 Qh3+ 44. Kg1 Kg7 45. Bc1 b5 46. Bd2 Kf7 47. Be1 h5 48. Bg3 Qf5 49. Qa2 Qg4 50. Kh1 Qd1+ 51. Kg2 Qf3+ 0-1