[Event "Olympiad-17 Preliminaries B"]
[Site "Havana"]
[Date "1966.10.29"]
[Round "4"]
[White "Palmason, Gudmundur"]
[Black "Tsagan, T"]
[Result "1-0"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 d5 6. a3 Be7 7. cxd5 exd5 8. Nf4 c6 9. Bd3 Bd6 10. O-O Re8 11. Qc2 Nbd7 12. f3 Qc7 13. g3 Bxf4 14. exf4 Nf8 15. f5 Qb6 16. Qf2 h6 17. g4 N6h7 18. h4 f6 19. Kh1 Qd8 20. Rg1 b6 21. Bf4 a5 22. Rae1 Bb7 23. Rxe8 Qxe8 24. Na4 Nd7 25. Re1 Qf7 26. Re6 Ndf8 27. Re3 Re8 28. Nxb6 Nd7 29. Na4 Nhf8 30. Qe2 Rxe3 31. Qxe3 Kh8 32. Bd6 Bc8 33. Qe7 Qxe7 34. Bxe7 Kg8 35. Bd8 h5 36. Bxa5 Nb8 37. Nc5 Nfd7 38. Nxd7 Nxd7 39. b4 Kf7 40. Bc7 Ke7 41. Kg2 Nf8 42. Kg3 Kd7 43. Bb6 Ke8 44. Kf4 Nd7 45. Bc7 Bb7 46. a4 Nf8 47. Bd6 Nd7 48. a5 Kf7 49. b5 cxb5 50. Bxb5 Ke8 51. a6 Ba8 52. gxh5 Kd8 53. Bxd7 1-0