[Event "Interzonal-04"]
[Site "Portoroz"]
[Date "1958.09.02"]
[Round "16"]
[White "Neikirkh, Oleg"]
[Black "Cardoso, Radolfo Tan"]
[Result "1-0"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Be2 O-O 6. Nf3 Nbd7 7. e5 Ne8 8. O-O c5 9. e6 fxe6 10. Ng5 Nc7 11. Nb5 Nf6 12. dxc5 Nxb5 13. cxb5 dxc5 14. Qb3 Nd5 15. Bg4 Qb6 16. Qh3 Nf6 17. Bxe6+ Bxe6 18. Nxe6 Rfc8 19. Re1 Re8 20. Bf4 Rac8 21. a4 Nh5 22. Be5 Bxe5 23. Rxe5 Ng7 24. Ng5 h5 25. Ne6 Qd6 26. Rae1 c4 27. Qe3 Rcd8 28. Nxd8 Rxd8 29. Rxe7 Nf5 30. Qe6+ Qxe6 31. R7xe6 Kf7 32. h3 Rd2 33. R6e2 Rd3 34. Rc2 Nd6 35. Kf1 a6 36. bxa6 bxa6 37. Re5 Rd1+ 38. Ke2 Rg1 39. g3 Rh1 40. h4 Rb1 41. Kd2 Nb7 42. Re1 Rxe1 43. Kxe1 Nd6 44. Kd2 Ke6 45. Kc3 a5 46. Kd4 1-0