[Event "Olympiad-18 Preliminaries A"]
[Site "Lugano"]
[Date "1968.10.22"]
[Round "5"]
[White "Primavera, Giuseppe"]
[Black "Terrazas, Filiberto"]
[Result "1-0"]
1. d4 e6 2. c4 f5 3. Nc3 Nf6 4. g3 c6 5. Bg2 Be7 6. e4 fxe4 7. Nxe4 d5 8. Nxf6+ Bxf6 9. Nf3 O-O 10. O-O Qb6 11. c5 Qd8 12. Bf4 b6 13. b4 Na6 14. Rb1 Nc7 15. a4 Re8 16. Re1 Bd7 17. Qc2 Rb8 18. Bf1 Rb7 19. Bd3 g6 20. h4 Qe7 21. Bd6 Qg7 22. Be5 Bxe5 23. Nxe5 b5 24. axb5 Nxb5 25. Bxb5 Rxb5 26. Ra1 Ra8 27. Qd2 Be8 28. Ra3 Qb7 29. Rf3 Rxb4 30. Ng4 Rb1 31. Rxb1 Qxb1+ 32. Kh2 Qb7 33. Nh6+ Kg7 34. Qg5 Qc7 35. Ng4 Bf7 36. Qf6+ Kf8 37. Qh8+ Ke7 38. Rxf7+ Kxf7 39. Qxh7+ Ke8 40. Qxc7 a5 41. Ne5 1-0