[Event "Belgrade International"]
[Site "Belgrade"]
[Date "1964.09.26"]
[Round "4"]
[White "Trifunovic, Petar"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. Bd3 Bb7 9. O-O Nbd7 10. Qe2 c5 11. Rfd1 Ne4 12. Bxe7 Qxe7 13. Rac1 Rfd8 14. cxd5 exd5 15. dxc5 bxc5 16. Ba6 Ndf6 17. Nxe4 Nxe4 18. Bxb7 Qxb7 19. Ne5 c4 20. Rc2 a5 21. f3 Nf6 22. Rcd2 Re8 23. f4 a4 24. a3 Rac8 25. Rd4 Rb8 26. R1d2 Qb3 27. Rc2 Rbc8 28. Rc3 Qb7 29. Rc2 Qb3 30. Rc3 Qb7 1/2-1/2