[Event "IBM"]
[Site "Amsterdam"]
[Date "1970.07.28"]
[Round "12"]
[White "Ree, Hans"]
[Black "Scholl, Eddie C"]
[Result "1/2-1/2"]

1. c4 g6 2. Nc3 c5 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 Nf6 6. O-O O-O 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Qd3 Rb8 11. Bd2 a6 12. Rac1 Bd7 13. Rfd1 Bc6 14. e4 Nd7 15. b3 b5 16. Nd5 Nc5 17. Qe3 bxc4 18. Rxc4 e6 19. Nf4 Qe7 20. h4 Rfc8 21. Rdc1 Qd7 22. Bh3 Qb7 23. f3 Nd7 24. h5 Ne5 25. Rb4 Qd7 26. Rxb8 Rxb8 27. hxg6 hxg6 28. Kg2 Rb5 29. Ne2 Ba8 30. Kf2 Rc5 31. f4 Rxc1 32. Bxc1 Nc6 33. Bg2 Qa7 34. Qxa7 Nxa7 35. Ba3 Bf8 36. Nc3 f6 37. Bf1 Bb7 38. Ke3 Nc8 39. Bb2 Kf7 40. a4 Be7 41. a5 1/2-1/2