[Event "IBM"]
[Site "Amsterdam"]
[Date "1969.??.??"]
[Round "8"]
[White "Byrne, Robert Eugene"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 a6 7. g5 Nfd7 8. Be3 b5 9. a3 Bb7 10. Qd2 Qc7 11. O-O-O Nb6 12. Ndxb5 axb5 13. Nxb5 Qc6 14. Nxd6+ Bxd6 15. Qxd6 Qxd6 16. Rxd6 N6d7 17. Bb5 Ra5 18. Rb6 Rxb5 19. Rxb5 Bxe4 20. Rd1 O-O 21. c4 Bc6 22. Ra5 Bf3 23. Rd6 Nc6 24. Ra6 Nde5 25. c5 Ne7 26. Bf4 N5g6 27. Bg3 e5 28. b4 Nf5 29. Rd7 Nd4 30. Kb2 Bg4 31. Rda7 f5 32. gxf6 gxf6 33. Ra8 f5 34. Rxg6+ hxg6 35. Rxf8+ Kxf8 36. Bxe5 Nc6 37. Bd6+ Ke8 38. b5 Nd4 39. a4 Be2 40. Kc3 Nxb5+ 41. axb5 Bxb5 42. Kd4 Be2 43. c6 Bf3 44. Ke5 Kd8 45. Kf6 Bh5 46. c7+ Kd7 47. Be5 Kc8 1/2-1/2