[Event "Olympiad-20 Preliminaries A"]
[Site "Skopje"]
[Date "1972.09.20"]
[Round "2"]
[White "Boey, Josef Martin"]
[Black "Delgado, Simon"]
[Result "1-0"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Qd2 d5 10. Nxc6 bxc6 11. e5 Nd7 12. f4 Qc7 13. Na4 e6 14. Nc5 Nxc5 15. Bxc5 Rd8 16. Rf3 Bf8 17. Bxf8 Rxf8 18. c3 Qe7 19. Bd3 Bd7 20. Re1 Rfb8 21. g4 f5 22. exf6 Qxf6 23. b3 a5 24. Re5 Rf8 25. Qe3 Rae8 26. g5 Qg7 27. h4 Qf7 28. h5 gxh5 29. g6 hxg6 30. Rg3 1-0