[Event "Interzonal-04"]
[Site "Portoroz"]
[Date "1958.08.12"]
[Round "5"]
[White "Olafsson, Fridrik"]
[Black "Cardoso, Radolfo Tan"]
[Result "1-0"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5 Nd5 7. Bd2 Bxc3 8. bxc3 Qc7 9. f4 a6 10. c4 Ne7 11. Bd3 d6 12. O-O dxe5 13. fxe5 Ng6 14. Qg4 Nc6 15. Nxc6 bxc6 16. Rae1 c5 17. h4 O-O 18. Qg5 Qd8 19. h5 Nh8 20. Qg3 f5 21. exf6 Rxf6 22. Bc3 Rxf1+ 23. Rxf1 Qe7 24. h6 e5 25. Bxe5 Ng6 26. Bd6 Qd7 27. Bxg6 hxg6 28. h7+ 1-0