[Event "Interzonal-04"]
[Site "Portoroz"]
[Date "1958.08.08"]
[Round "3"]
[White "Olafsson, Fridrik"]
[Black "Matanovic, Aleksandar"]
[Result "1/2-1/2"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 Qc7 11. Bb2 e5 12. h3 e4 13. Nh2 Ne7 14. Ba2 c4 15. a4 Re8 16. Qe2 Be6 17. Ba3 Ned5 18. Rfc1 Rac8 19. Nf1 Qa5 20. Qc2 Bd7 21. Nd2 Bxa4 22. Qb2 Qb5 23. Qxb5 Bxb5 24. Bc5 b6 25. Bd6 a6 26. g4 h5 27. Bb1 hxg4 28. hxg4 Rcd8 29. Bg3 g5 30. Ba2 Rc8 31. Bb1 a5 32. Be5 Nxg4 33. Bxe4 Nxe5 34. Bxd5 Red8 35. Bg2 Bc6 36. Rcb1 Bxg2 37. Kxg2 Nd7 38. Rb5 f6 39. Ra4 Kf7 40. Nxc4 Rc6 41. d5 1/2-1/2