[Event "IBM"]
[Site "Amsterdam"]
[Date "1965.??.??"]
[Round "3"]
[White "Bouwmeester, Hans"]
[Black "Barendregt, Johan"]
[Result "1-0"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 Qc7 8. Bb3 O-O 9. Qe2 h6 10. h3 Nh7 11. Be3 exd4 12. Nxd4 Nc5 13. Ba2 Ng5 14. f3 Bf6 15. Qf2 Re8 16. Rad1 a6 17. b4 Nce6 18. Nde2 Nf8 19. Qg3 Ng6 20. a5 Be6 21. Bxe6 Nxe6 22. Bb6 Qe7 23. Qxd6 Qxd6 24. Rxd6 Be7 25. Rd7 Bxb4 26. Rxb7 Ne5 27. Rb1 Re7 28. Rxe7 Bxe7 29. Na4 Nc4 30. c3 Bd8 31. f4 Nxa5 32. f5 Ng5 33. Bxd8 Rxd8 34. Nc5 Nc4 35. h4 Nh7 36. Nxa6 Nf6 37. Nc5 Re8 38. Rb4 Nd6 39. Ng3 Re5 40. Nd3 Re8 1-0