[Event "IBM"]
[Site "Amsterdam"]
[Date "1968.??.??"]
[Round "10"]
[White "Kotov, Alexander"]
[Black "Ree, Hans"]
[Result "0-1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5 8. cxd5 exd5 9. Ne2 Bd6 10. Ng3 g6 11. b3 Nbd7 12. Bb2 Qe7 13. Rc1 Ne4 14. Bb5 f5 15. Ne2 Nb8 16. Ne5 a6 17. Bd3 c5 18. f3 Bxe5 19. dxe5 Ng5 20. h4 Ne6 21. Qe1 Nc6 22. Qg3 Rad8 23. h5 Qg5 24. Qxg5 Nxg5 25. Kf2 Ne6 26. hxg6 hxg6 27. g4 fxg4 28. f4 Ne7 29. Rg1 d4 30. Bc4 Bd5 31. Rxg4 dxe3+ 32. Kxe3 Kf7 33. Bd3 Nf5+ 34. Bxf5 gxf5 35. Rg3 Be4 36. Rc3 Rh8 37. Bc1 Rh2 38. Rg1 Nc7 39. e6+ Kxe6 0-1