[Event "Hoogovens 27th"]
[Site "Beverwijk"]
[Date "1965.01.16"]
[Round "9"]
[White "Ivkov, Borislav"]
[Black "Donner, Jan Hein"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. O-O-O Nbd7 10. g4 b5 11. a3 Rb8 12. Bxf6 Nxf6 13. g5 Nd7 14. Bh3 Nc5 15. Rhg1 b4 16. axb4 Rxb4 17. f5 Qb6 18. fxe6 fxe6 19. Nxe6 Nxe6 20. Nd5 Qc5 21. Nxb4 Qxb4 22. e5 Bb7 23. Qf5 Qf4+ 24. Qxf4 Nxf4 25. exd6 Ne2+ 26. Kb1 Nxg1 27. Re1 Nxh3 28. Rxe7+ Kd8 29. Rxb7 Re8 30. c4 Re5 1/2-1/2