[Event "Interzonal-04"]
[Site "Portoroz"]
[Date "1958.08.19"]
[Round "9"]
[White "Olafsson, Fridrik"]
[Black "Rossetto, Hector"]
[Result "0-1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. b3 Nbd7 6. O-O Be7 7. Qc2 O-O 8. Bb2 a5 9. Nc3 Nb6 10. d3 a4 11. e4 axb3 12. axb3 Rxa1 13. Rxa1 Qc7 14. Ne2 dxe4 15. dxe4 Nbd7 16. Nc1 Rd8 17. e5 Ng4 18. Nd3 Nc5 19. Nxc5 Bxc5 20. Rf1 Qd7 21. h3 Nh6 22. g4 Qd3 23. Rc1 Be7 24. Qxd3 Rxd3 25. Bc3 f5 26. g5 Nf7 27. h4 c5 28. Ne1 Rd8 29. Kf1 Nh8 30. Ba5 Rd4 31. Ra1 Ng6 32. Bb6 Bd7 33. Ra8+ Kf7 34. Bxb7 Nxe5 35. h5 Rd1 36. f4 Ng4 37. Ke2 Rb1 38. Nd3 Rxb3 39. Rh8 Rxb6 40. Bf3 Bd6 41. h6 0-1