[Event "IBM"]
[Site "Amsterdam"]
[Date "1973.??.??"]
[Round "10"]
[White "Langeweg, Kick"]
[Black "Petrosian, Tigran V"]
[Result "0-1"]

1. Nf3 d6 2. d4 Bg4 3. e4 Nf6 4. Nc3 e6 5. Be2 Be7 6. O-O O-O 7. Bf4 c6 8. h3 Bxf3 9. Bxf3
d5 10. Qd3 a6 11. e5 Nfd7 12. Ne2 b5 13. a4 Nb6 14. axb5 cxb5 15. Ra2 Ra7 16. c3 b4 17. b3
bxc3 18. Qxc3 Qd7 19. Rc1 Rc8 20. Qa1 Rac7 21. Rxc7 Rxc7 22. Bd2 Qc8 23. g3 Rc2 24. Rxc2
Qxc2 25. Qc3 Qxc3 26. Bxc3 Nc6 27. Nc1 Na8 28. Be2 Nc7 29. Kf1 f5 30. Bd3 Nb5 31. Bxb5
axb5 32. Bb2 h5 33. f3 h4 34. gxh4 Bxh4 35. Nd3 Bd8 36. Nc1 Bb6 37. Ne2 b4 38. Kg2 Kf7 39.
Ba1 Na5 40. Nc1 Kg6 41. Bb2 Kg5 42. Kg3 f4+ 43. Kg2 Kh4 44. Kh2 g5 45. Kg2 Kh5 46. Kh2 Nc6
47. Ne2 Ne7 48. Kg2 Nf5 49. Kh2 Kh4 50. Kg2 Ne3+ 51. Kh2 Nc2 0-1