Ljubojevic, Ljubomir VS Donner, Jan Hein 1972.??.??

[Event "IBM"]
[Site "Amsterdam"]
[Date "1972.??.??"]
[Round "?"]
[White "Ljubojevic, Ljubomir"]
[Black "Donner, Jan Hein"]
[Result "1/2-1/2"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Bc4 c5 6. d5 O-O 7. Nge2 e6 8. dxe6 Bxe6 9. Bxe6 fxe6 10. O-O Nc6 11. h3 d5 12. e5 Ne8 13. a3 Nc7 14. b4 cxb4 15. axb4 Nxb4 16. Rb1 a5 17. Nd4 Qd7 18. Ba3 Rfc8 19. Bxb4 axb4 20. Rxb4 Na6 21. Rb3 Rc4 22. Ncb5 Nc5 23. Re3 Bf8 24. Kh2 Ra5 25. Nc3 b5 26. h4 b4 27. Nce2 Ne4 28. h5 Bc5 29. hxg6 hxg6 30. Rh3 Ra8 31. Rff3 Kg7 32. Qe1 Be7 33. g4 Rf8 34. f5 exf5 35. gxf5 Ng5 36. f6+ Bxf6 37. exf6+ Rxf6 38. Qa1 Nxf3+ 39. Rxf3 Rxf3 40. Nxf3+ Kg8 41. Ned4 Qd6+ 42. Kg2 Rc8 43. Qa7 Re8 44. Qb7 1/2-1/2