[Event "Interzonal-04"]
[Site "Portoroz"]
[Date "1958.08.19"]
[Round "9"]
[White "De Greif, Boris"]
[Black "Cardoso, Radolfo Tan"]
[Result "0-1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Nc6 7. Nxc6 bxc6 8. e5 Bg4 9. Be2 Bxe2 10. Qxe2 Ng8 11. exd6 Qxd6 12. O-O Nf6 13. Be3 e6 14. Rad1 Qc7 15. Bd4 Bd6 16. Ne4 Be7 17. Ng3 h5 18. Rd3 h4 19. Ne4 Rd8 20. Be5 Qb6+ 21. Qf2 Qxf2+ 22. Nxf2 Nh5 23. Rfd1 f6 24. Rxd8+ Bxd8 25. Bd6 Bb6 26. Kf1 Kf7 27. Rd3 f5 28. Be5 Nf6 29. Bxf6 Kxf6 30. Rd6 Rc8 31. Nd3 Ke7 0-1