[Event "IBM"]
[Site "Amsterdam"]
[Date "1967.??.??"]
[Round "7"]
[White "Ree, Hans"]
[Black "Enevoldsen, Jens"]
[Result "1-0"]

1. d4 d5 2. c4 e6 3. cxd5 exd5 4. Nc3 c5 5. e4 dxe4 6. d5 a6 7. Qa4+ Bd7 8. Qxe4+ Qe7 9. Bf4 Nf6 10. Qxe7+ Bxe7 11. O-O-O Bf5 12. Re1 Kd8 13. Nf3 Nbd7 14. Ng5 Bg6 15. d6 Bf8 16. Bc4 h6 17. Nxf7+ Bxf7 18. Bxf7 g5 19. Bg3 Rh7 20. Bg6 Rg7 21. Bf5 Nh5 22. Re6 Nxg3 23. hxg3 Rg8 24. Nd5 Rb8 25. Rhe1 Bg7 26. Re7 Ne5 27. R1xe5 Bxe5 28. Rd7+ 1-0