[Event "Interzonal-04"]
[Site "Portoroz"]
[Date "1958.09.06"]
[Round "19"]
[White "De Greif, Boris"]
[Black "Sanguineti, Raul"]
[Result "0-1"]

1. Nf3 c5 2. c4 g6 3. g3 Bg7 4. Bg2 Nc6 5. d3 a6 6. Nc3 Rb8 7. a4 d6 8. O-O Nh6 9. Bd2 Nf5 10. Rb1 O-O 11. Ne1 Bd7 12. Nc2 a5 13. Nb5 h5 14. Bg5 Ne5 15. e4 Nh6 16. h3 f5 17. f4 Nef7 18. Bh4 Bc6 19. Kh2 Qd7 20. Ne3 e6 21. b3 Nd8 22. Qd2 b6 23. Rbe1 Bb7 24. Qd1 Nc6 25. exf5 Nxf5 26. Nxf5 Rxf5 27. g4 hxg4 28. hxg4 Rf7 29. Be4 Ne7 30. Bxb7 Rxb7 31. Qe2 e5 32. Qg2 exf4 33. Bxe7 Rxe7 34. Qd5+ Kh8 35. Rf3 Be5 36. Rh3+ Rh7 37. Rxe5 Rxh3+ 38. Kxh3 dxe5 39. Qxe5+ Qg7 40. Qxf4 Rf7 41. Qe3 Qf8 42. Kg2 Qa8+ 43. Kg3 Qb8+ 44. Kg2 Rh7 0-1