[Event "Match/Nation YUG-URS"]
[Site "Zagreb"]
[Date "1958.06.26"]
[Round "4"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Ivkov, Borislav"]
[Result "1-0"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Nd2 c5 5. dxc5 O-O 6. Bg2 Nc6 7. Nf3 Bxc5 8. O-O b6 9. e4 e5 10. b3 d6 11. Bb2 Bg4 12. h3 Bxf3 13. Nxf3 a5 14. a3 Ne8 15. Qd5 Qc8 16. Bc3 Nf6 17. Qd3 Qb7 18. Rfe1 Nh5 19. Qd2 h6 20. b4 axb4 21. axb4 Rxa1 22. Rxa1 Nxg3 23. bxc5 Nxe4 24. Qc2 Nxc3 25. cxd6 Qd7 26. Qxc3 Qxd6 27. Qd2 Qf6 28. Re1 Rd8 29. Qb2 Qf4 30. Qxb6 Rd6 31. Qe3 Qxc4 32. Nxe5 Nxe5 33. Qxe5 Re6 34. Qb8+ Kh7 35. Qb1+ g6 36. Rc1 Qf4 37. Rc2 Qf5 38. Rb2 Qa5 39. Rb4 Re5 40. h4 h5 41. Bf3 Rf5 42. Be4 Rf6 43. Qb2 Re6 44. Rb7 Qe5 45. Rxf7+ Kg8 46. Qxe5 Rxe5 47. Bxg6 1-0