[Event "IBM"]
[Site "Amsterdam"]
[Date "1962.08.15"]
[Round "2"]
[White "Van den Berg, Carel"]
[Black "Dunkelblum, Arthur"]
[Result "1/2-1/2"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Bc4 Nf6 7. N1e2 e6 8. Nf4 Bd6 9. Bb3 Qc7 10. Qf3 Nd5 11. Nxg6 hxg6 12. Ne4 Be7 13. h3 Nd7 14. O-O O-O 15. c4 N5f6 16. Nc3 Rad8 17. Re1 Rfe8 18. Bf4 Bd6 19. Bg5 Be7 20. Rad1 a6 21. d5 Nc5 22. Bf4 Bd6 23. Bxd6 Rxd6 24. Bc2 cxd5 25. cxd5 Qb6 1/2-1/2