[Event "IBM"]
[Site "Amsterdam"]
[Date "1962.08.28"]
[Round "10"]
[White "Van den Berg, Carel"]
[Black "Hartoch, Robert G"]
[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 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5 11. d4 Nd7 12. Nbd2 cxd4 13. cxd4 Nc6 14. Nf1 exd4 15. Nxd4 Nde5 16. Nxc6 Nxc6 17. Ne3 Be6 18. Bb3 Bxb3 19. Qxb3 Rc8 20. Bd2 Bf6 21. Rad1 Be5 22. Nd5 Re8 23. f4 Bd4+ 24. Kh2 Bf2 25. Rf1 Qh4 26. Qf3 Bc5 27. Be1 Qh6 28. Bf2 Nb4 29. Nxb4 Bxb4 30. a3 Bc5 31. Bg3 a5 32. Qd3 b4 33. a4 Qe6 34. Rfe1 Red8 35. e5 Qe7 36. Qf5 dxe5 37. fxe5 Qe6 1/2-1/2