[Event "Olympiad-09"]
[Site "Dubrovnik"]
[Date "1950.09.05"]
[Round "12"]
[White "Nielsen, Hartvig"]
[Black "Opsahl, Haakon"]
[Result "1-0"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 d6 8. a4 Bg4 9. c3 O-O 10. Rd1 Rb8 11. axb5 axb5 12. d4 Ra8 13. Rxa8 Qxa8 14. Na3 b4 15. Nb5 bxc3 16. bxc3 Qb7 17. Bc4 Na5 18. Bd3 h6 19. h3 Bxf3 20. Qxf3 c6 21. Na3 Nb3 22. Be3 d5 23. Nc2 dxe4 24. Bxe4 Nxe4 25. Qxe4 exd4 26. cxd4 Na5 27. Ne1 Qd7 28. Rc1 f5 29. Qc2 Qd5 30. Nf3 Bf6 31. Qa4 Qb5 32. Qa2+ Qd5 33. Qxd5+ cxd5 34. Rc5 Nb7 35. Rxd5 Bd8 36. Ne5 Bc7 37. f4 Rd8 38. Rxd8+ Bxd8 39. Bc1 Be7 40. Kf2 Bd6 41. Ke3 Kf8 42. d5 Bc7 43. Kd3 Ke7 44. Kc4 Bd6 45. Kb5 g5 46. Nc6+ Kf6 47. Bb2+ Kf7 48. Ne5+ Ke7 49. fxg5 hxg5 50. Kb6 Nc5 51. Kc6 Ne4 52. Nc4 Bf4 53. d6+ Kd8 54. Ne5 Bxe5 55. Bxe5 g4 56. d7 gxh3 57. Bc7+ 1-0