[Event "Olympiad-18 Preliminaries B"]
[Site "Lugano"]
[Date "1968.10.21"]
[Round "4"]
[White "Diaz Carias, Salvador"]
[Black "Holm Pedersen, Sejer"]
[Result "1/2-1/2"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. g3 d6 6. exd6 Qxd6 7. Bg2 Bf5 8. d4 Qe6+ 9. Qe2 Qxe2+ 10. Kxe2 e6 11. Nbd2 O-O-O 12. dxc5 Bxc5 13. Nb3 Bb6 14. Nbd4 Nxd4+ 15. Nxd4 Rhe8 16. Be3 Bg6 17. Rhd1 Nxe3 18. fxe3 a6 19. c4 Kb8 20. b4 e5 21. Nb3 e4 22. g4 h5 23. h3 hxg4 24. hxg4 f5 25. c5 Bc7 26. Rxd8+ Rxd8 27. gxf5 Bxf5 28. Nd4 Be5 29. Rf1 Bg4+ 30. Kd2 Bxd4 31. exd4 Rxd4+ 32. Ke3 Rxb4 33. Bxe4 Be6 34. Rg1 Bxa2 35. Rxg7 a5 36. Rxb7+ Rxb7 37. Bxb7 Kxb7 38. Kd4 Kc6 39. Kc3 1/2-1/2