[Event "Olympiad-18 Preliminaries B"]
[Site "Lugano"]
[Date "1968.10.18"]
[Round "1"]
[White "Hamilton, Douglas Gibson"]
[Black "Ujtumen, Tudev"]
[Result "0-1"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Nc5 10. Nd4 Nxd4 11. cxd4 Nxb3 12. Qxb3 c5 13. dxc5 d4 14. Qg3 Qd5 15. Nd2 Bxc5 16. Re1 O-O 17. Ne4 Kh8 18. Bg5 Bf5 19. Nf6 Qe6 20. Nh5 Bg6 21. Nf4 Qf5 22. e6 f6 23. Nxg6+ hxg6 24. Bf4 Rfe8 25. Bd6 Bb6 26. e7 Rac8 27. Rac1 Rc4 28. b3 Rc3 29. Rxc3 dxc3 30. Bb4 c2 31. Qh3+ Qxh3 32. gxh3 a5 33. Ba3 b4 34. Bc1 g5 35. Re2 Kh7 36. Kg2 Kg6 37. Kf3 Kf5 38. Rxc2 Rxe7 39. Rc6 Bd4 40. Rc4 Ba7 41. h4 gxh4 42. Rxh4 Rc7 43. Rf4+ Kg6 44. Be3 Bxe3 45. fxe3 Rc2 46. Rg4+ Kf7 47. Rg2 Rxg2 48. Kxg2 Ke6 49. Kf3 Ke5 50. Kg4 Ke4 51. Kh5 Kxe3 52. Kg6 Ke4 0-1