[Event "Olympiad-18 Preliminaries C"]
[Site "Lugano"]
[Date "1968.10.19"]
[Round "2"]
[White "Belliard Alonzo, Luis Manuel"]
[Black "Dietrich, Norbert"]
[Result "1-0"]
1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 d6 5. d3 O-O 6. Nf3 Nc6 7. O-O e5 8. Nd5 h6 9. e4 Bg4 10. h3 Be6 11. Be3 Kh7 12. Qd2 Ne8 13. g4 Qd7 14. Kh2 Ne7 15. Ng1 c6 16. Nxe7 Qxe7 17. f4 exf4 18. Bxf4 Rd8 19. Rae1 Qd7 20. b3 d5 21. exd5 cxd5 22. Qe2 b6 23. Nf3 dxc4 24. dxc4 Qd3 25. Ne5 Qxe2 26. Rxe2 Bxe5 27. Rxe5 Ng7 28. Rfe1 Rd4 29. R5e4 Rfd8 30. Be3 R4d7 31. c5 Bd5 32. Ra4 Bxg2 33. Kxg2 bxc5 34. Bxc5 Rd2+ 35. Bf2 R8d7 36. Kg3 Ne6 37. Bxa7 g5 38. Be3 R7d3 39. Kf3 Rh2 40. Kg3 Rc2 41. Kf3 Rh2 42. Ra7 Kg6 43. Ra8 Rxh3+ 44. Ke4 Rc3 45. Bd4 Nxd4 46. Kxd4 Rcg3 47. Re4 Rh4 48. b4 Rgxg4 49. Rxg4 Rxg4+ 50. Ke5 f5 51. b5 1-0