[Event "IBM"]
[Site "Amsterdam"]
[Date "1972.??.??"]
[Round "?"]
[White "Ree, Hans"]
[Black "Polugaevsky, Lev"]
[Result "0-1"]

1. c4 Nf6 2. Nf3 c5 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Nc6 6. Bg2 Nc7 7. d3 e5 8. Nd2 Bd7 9. O-O
Be7 10. Nc4 f6 11. f4 b5 12. Bxc6 Bxc6 13. Na5 Bd7 14. fxe5 Ne6 15. Nb7 Qb6 16. Nd6+ Bxd6
17. exd6 Qxd6 18. Ne4 Qe7 19. a4 bxa4 20. b3 O-O 21. bxa4 f5 22. Nc3 Bc6 23. e3 Rad8 24.
Qe2 Qd7 25. Bb2 Qxd3 26. Rfd1 Qxe2 27. Nxe2 Ng5 28. Nf4 Rfe8 29. h3 Kf7 30. Nd3 Rd5 31. h4
Nf3+ 32. Kf2 Red8 0-1