[Event "IBM"]
[Site "Amsterdam"]
[Date "1967.??.??"]
[Round "11"]
[White "Donner, Jan Hein"]
[Black "Ciric, Dragoljub M"]
[Result "1-0"]

1. c4 e6 2. d4 d5 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Qc2 g6 8. Bd3 Nbd7 9. Nf3 Nh5 10. Bxe7 Qxe7 11. O-O O-O 12. Rfe1 Ndf6 13. Rab1 a5 14. Na4 Rb8 15. Nb6 Be6 16. a3 Qc7 17. Qc5 Nd7 18. Nxd7 Bxd7 19. b4 axb4 20. axb4 b6 21. Qc3 b5 22. Ra1 Nf6 23. Ne5 Rfc8 24. Rec1 Rb7 25. Qc5 Ng4 26. Nxg4 Bxg4 27. Ra6 Bd7 28. g3 f5 29. h4 Qd8 30. Rca1 Qf8 31. Qxf8+ Kxf8 32. f3 Ke7 33. Kf2 Kd6 34. h5 g5 35. h6 Rf8 36. Rh1 Rg8 37. e4 fxe4 38. fxe4 dxe4 39. Bxe4 Rf8+ 40. Ke3 Be8 41. d5 Re7 42. dxc6 Rc7 43. Rd1+ Ke7 44. Rd5 Rf6 45. Rxg5 Rxh6 46. Rg7+ Kd6 47. Rxc7 Kxc7 48. Ra7+ Kb6 49. Rb7+ Ka6 50. Rxh7 1-0