Pachman, Ludek VS Ree, Hans 1967.??.??

[Event "IBM"]
[Site "Amsterdam"]
[Date "1967.??.??"]
[Round "2"]
[White "Pachman, Ludek"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]

1. d4 g6 2. e4 Bg7 3. c4 d6 4. Nc3 Nc6 5. Be3 e5 6. d5 Nce7 7. Qd2 f5 8. f3 Nf6 9. h3 f4 10. Bf2 c5 11. dxc6 bxc6 12. O-O-O d5 13. cxd5 cxd5 14. exd5 O-O 15. Bc4 Kh8 16. Nge2 Bf5 17. g4 fxg3 18. Nxg3 Rc8 19. Bb3 Nfxd5 20. Nxf5 Nxc3 21. Qxd8 Nxd1+ 22. Qxc8 Rxc8+ 23. Kxd1 Nxf5 24. Bxa7 Bh6 25. Rh2 Rc7 26. Bb6 Rc6 27. Ba7 Rc7 28. Bb8 Rc1+ 29. Ke2 Bf4 30. Rf2 Rc8 1/2-1/2