[Event "IBM"]
[Site "Amsterdam"]
[Date "1974.07.22"]
[Round "6"]
[White "Ivkov, Borislav"]
[Black "Timman, Jan H"]
[Result "1-0"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 Bf5 6. Nc3 e6 7. Nf3 dxe5 8. fxe5 Bb4 9. Bd3 Bxd3 10. Qxd3 c5 11. O-O cxd4 12. Ne4 N6d7 13. Nfg5 Nxe5 14. Qg3 Nbd7 15. Bf4 Qb6 16. Bxe5 f6 17. Bd6 fxg5 18. Bxb4 Qxb4 19. Nd6+ Ke7 20. Rf7+ Kd8 21. Qxg5+ Kc7 22. Nb5+ Kc8 23. Raf1 b6 24. Rxd7 Kxd7 25. Qxg7+ 1-0