Donner, Jan Hein VS Kavalek, Lubomir 1969.??.??

[Event "IBM"]
[Site "Amsterdam"]
[Date "1969.??.??"]
[Round "3"]
[White "Donner, Jan Hein"]
[Black "Kavalek, Lubomir"]
[Result "0-1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. Be3 Qe7 8. d5 a5 9. Nd2 h5 10. f3 Nh7 11. a3 f5 12. b4 Nd7 13. O-O f4 14. Bf2 g5 15. Rc1 Ndf6 16. c5 axb4 17. axb4 g4 18. cxd6 cxd6 19. Bh4 Bh6 20. Nc4 Bg5 21. Bxg5 Nxg5 22. Nb6 gxf3 23. Bxf3 Nxf3+ 24. Qxf3 Bg4 25. Qd3 Ra6 26. Nc4 h4 27. h3 Bh5 28. Nd2 Kh8 29. Nf3 Ne8 30. Ra1 Rxa1 31. Rxa1 Qd8 32. Kh1 Rg8 33. Ne2 Nf6 34. Nxh4 Nxe4 35. Qxe4 Qxh4 36. Rf1 Bg6 37. Qf3 Qh7 38. Qc3 Be4 39. Rf2 Qg7 40. Kh2 Bxg2 0-1