[Event "IBM"]
[Site "Amsterdam"]
[Date "1972.??.??"]
[Round "?"]
[White "Langeweg, Kick"]
[Black "Robatsch, Karl"]
[Result "1-0"]

1. Nf3 d6 2. d4 Nd7 3. e4 g6 4. Bc4 e6 5. Bb3 Bg7 6. Bg5 Ne7 7. Qd2 h6 8. Bf4 b6 9. Nc3 a6 10. a4 Bb7 11. h3 Nf6 12. Qe2 d5 13. exd5 exd5 14. a5 O-O 15. axb6 cxb6 16. Ne5 Nf5 17. Qd2 b5 18. O-O Kh7 19. f3 Nd6 20. Ne2 Nc4 21. Qc1 Nd7 22. Nd3 Re8 23. Rf2 Qb6 24. c3 Re7 25. Bc2 Rae8 26. Ng3 a5 27. b3 Ne3 28. Bxe3 Rxe3 29. Ne5 R8xe5 30. dxe5 Bxe5 31. Nf5 gxf5 32. Bxf5+ Kg7 33. Bxd7 Bxc3 34. Kh2 Qd6+ 35. f4 Qxd7 36. Qxe3 Bxa1 37. Rf3 f5 38. Rg3+ Kh7 39. Qb6 Bg7 40. Qg6+ Kh8 41. Re3 Bf8 42. Rg3 Qg7 43. Qe6 Qh7 44. Qf6+ Bg7 45. Qf7 Bc6 46. Rg6 1-0