[Event "IBM"]
[Site "Amsterdam"]
[Date "1962.08.14"]
[Round "1"]
[White "Van den Berg, Carel"]
[Black "Donner, Jan Hein"]
[Result "1/2-1/2"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Nd7 12. Nbd2 cxd4 13. cxd4 Bf6 14. Nf1 Nc6 15. Be3 exd4 16. Nxd4 Nde5 17. Rc1 Bb7 18. b3 g6 19. Bb1 Rc8 20. Qd2 Re8 21. Rcd1 Nxd4 22. Bxd4 Qc7 23. Ne3 h5 24. Kh1 Nd7 25. f3 Bh4 26. Rf1 Nf8 27. Bb2 Qb6 28. Nd5 Bxd5 29. Qxd5 Rcd8 30. f4 Qc5 31. Qb7 Re7 1/2-1/2