[Event "Olympiad-18 Preliminaries C"]
[Site "Lugano"]
[Date "1968.10.21"]
[Round "4"]
[White "Ivkov, Borislav"]
[Black "Malagon, Alberto"]
[Result "1-0"]
1. d4 f5 2. c4 e6 3. Nc3 Nf6 4. g3 Be7 5. Bg2 O-O 6. Nf3 Qe8 7. O-O d5 8. b3 c6 9. Bb2 Ne4 10. e3 Nd7 11. Rc1 Qh5 12. Ne1 Qh6 13. Nd3 Ndf6 14. Ne5 Bd7 15. Nxd7 Nxd7 16. Ne2 Bd6 17. Qd3 Rae8 18. Rb1 Ndf6 19. f3 Ng5 20. Bc1 Qg6 21. Nf4 Qh6 22. Bd2 Kh8 23. b4 a6 24. a4 Nh5 25. b5 axb5 26. axb5 Nxf4 27. exf4 Nf7 28. bxc6 bxc6 29. Rfe1 Qf6 30. Rb6 Nd8 31. Ra6 Kg8 32. Rb1 Rf7 33. c5 Bc7 34. Ra8 Kf8 35. Rba1 h6 36. R1a7 Rfe7 37. Rc8 Qf7 38. Raa8 Qf6 39. Bf1 g5 40. Ra7 Qg7 41. fxg5 hxg5 42. Bxg5 Qxg5 43. Rcxc7 Qf6 44. Qe3 Rxc7 45. Rxc7 e5 46. dxe5 Rxe5 47. Qc3 Re6 48. Qxf6+ Rxf6 49. Ba6 Rf7 50. Rxf7+ Kxf7 51. Bc8 Kf6 52. Kf2 Ke5 53. h4 f4 54. g4 Kf6 55. g5+ Kg6 56. Bd7 Kh5 57. Be8+ Kxh4 58. g6 Ne6 59. Bxc6 Kg5 60. Bxd5 Ng7 61. c6 Ne8 62. c7 Nxc7 63. g7 1-0