[Event "Olympiad-18 Preliminaries C"]
[Site "Lugano"]
[Date "1968.10.22"]
[Round "5"]
[White "Malagon, Cesar"]
[Black "Kroon, Piet"]
[Result "0-1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Be2 O-O 8. O-O d5 9. exd5 Nb4 10. d6 Qxd6 11. Ndb5 Qxd1 12. Bxd1 Bf5 13. Bc5 Nc6 14. Re1 a6 15. Nd4 Nxd4 16. Bxd4 Rfd8 17. Be5 b5 18. a3 Ra7 19. h3 h5 20. f3 h4 21. Ne2 Rad7 22. Rc1 Bh6 23. Ra1 Bd2 24. Rf1 Nd5 25. Kh2 Ne3 26. Rg1 Nxd1 27. Rgxd1 Bxc2 28. Rh1 Bd3 29. Nc1 f6 30. Nb3 Be3 31. Rhe1 Bf2 32. Bc3 Bg3+ 33. Kg1 Bxe1 34. Bxe1 Bc4 35. Nc1 Rd1 36. Kf2 R8d2+ 37. Bxd2 Rxd2+ 38. Kg1 Rxb2 39. a4 Rc2 40. axb5 axb5 41. Rb1 Rc3 42. Kf2 Kf7 43. f4 Ke6 0-1