[Event "IBM"]
[Site "Amsterdam"]
[Date "1964.07.21"]
[Round "1"]
[White "Van Geet, Dick Daniel"]
[Black "Van Scheltinga, Theo D"]
[Result "0-1"]

1. Nc3 d5 2. e4 dxe4 3. Nxe4 Nd7 4. Bc4 Ndf6 5. Ng5 e6 6. d4 Bd6 7. Qe2 Ne7 8. N1f3 h6 9. Ne4 Nxe4 10. Qxe4 Bd7 11. Ne5 Bxe5 12. dxe5 Bc6 13. Qg4 Nf5 14. f3 Qe7 15. Bd3 g6 16. Bd2 O-O-O 17. Qb4 Qh4+ 18. Qxh4 Nxh4 19. Rg1 g5 20. O-O-O Rhg8 21. Rdf1 a6 22. Rf2 Rd7 23. h3 Bd5 24. a3 c5 25. b4 c4 26. Be2 Ng6 27. f4 c3 28. Be3 gxf4 29. Bxf4 Nxf4 30. Rxf4 Rg5 31. Bd1 Rxe5 32. Rh4 Rg5 33. g4 Rg6 34. Rg3 Rc7 35. Rh5 f5 36. Rd3 Be4 37. Re3 b5 38. Be2 Kb7 39. Bd3 Bxd3 40. cxd3 fxg4 41. hxg4 Rxg4 42. Rxe6 Rg1+ 43. Kc2 Rg2+ 44. Kc1 Rf7 45. Re1 Ra2 46. Kb1 Rff2 47. Re7+ Kc8 0-1