[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1975.01.28"]
[Round "12"]
[White "Donner, Jan Hein"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 c6 6. e4 d6 7. Nge2 e5 8. O-O a6 9. dxe5 dxe5 10. c5 Be6 11. Qc2 a5 12. Na4 Na6 13. a3 Qe7 14. Bd2 Nd7 15. Be3 f5 16. Rab1 Qf7 17. b4 axb4 18. axb4 Nc7 19. Nac3 Nf6 20. f3 fxe4 21. fxe4 Qe7 22. h3 Bc4 23. Rfd1 Nh5 24. Kh2 Ne6 25. Nd5 cxd5 26. exd5 Bxe2 27. Qxe2 Nef4 28. Bxf4 Nxf4 29. gxf4 Rxf4 30. d6 Qh4 31. Rf1 e4 32. Qe1 Be5 33. Kg1 Qg5 34. Qe2 Qg3 35. Rxf4 Bxf4 36. Qg4 Qh2+ 37. Kf1 e3 38. Qe6+ 1/2-1/2