[Event "Osijek"]
[Site "Osijek YUG"]
[Date "1978.04.14"]
[EventDate "1978.04.07"]
[Round "7"]
[Result "1-0"]
[White "Borislav Ivkov"]
[Black "Mark C Diesen"]
[ECO "A34"]
[WhiteElo "2515"]
[BlackElo "2440"]
[PlyCount "68"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 5. g3 g6 6. Bg2 Bg7 7. Qa4+ Nc6 8.  Qc4 Ndb4 9. O-O O-O 10. Qxc5 Bf5 11. d3 Rc8 12. Qb5 Nc2 13. Rb1 b6 14. Qa4 N6b4  15. Ne1 Bd7 16. Qxa7 Nc6 17. Qa6 N6b4 18. Qb7 Nd4 19. Be3 Nbc6 20. Bxd4 Bxd4  21. e3 Rc7 22. Qa6 Bc5 23. d4 Bd6 24. Nd5 Ra7 25. Qxb6 Qa8 26. Qb3 Be6 27. Qd1  Rxa2 28. Nc3 Bc4 29. Nxa2 Qxa2 30. Nd3 Qa6 31. Nc5 Bxc5 32. dxc5 Bxf1 33. Qxf1  Qa5 34. Bxc6 1-0