[Event "IBM"]
[Site "Amsterdam"]
[Date "1962.08.22"]
[Round "7"]
[White "Kieninger, Georg"]
[Black "Donner, Jan Hein"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 d5 7. Bg5 Be6 8. exd5 Qxd5 9. Nc3 Bb4 10. Qd2 Qxd2+ 11. Bxd2 Nc6 12. Bb5 O-O-O 13. Bxc6 bxc6 14. O-O-O Nd5 15. Nxd5 Bxd2+ 16. Rxd2 Rxd5 17. Re1 f6 18. f4 Re8 19. fxe5 Rxe5 20. Rxe5 fxe5 21. Re2 Bf5 22. Nd4 Bd7 23. Nf3 e4 24. Nd2 Bf5 25. Nc4 Kc7 26. Ne3 Bg6 27. Rd2 Re5 28. b3 1/2-1/2