[Event "IBM"]
[Site "Amsterdam"]
[Date "1969.??.??"]
[Round "1"]
[White "Liberzon, Vladimir Mikhailovi"]
[Black "Langeweg, Kick"]
[Result "1-0"]

1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. b3 c5 7. e3 Nc6 8. Bb2 b6 9. Nc3 Bb7 10. Qe2 Rc8 11. d3 Rc7 12. Rfd1 Rd7 13. cxd5 Nxd5 14. Nxd5 Rxd5 15. d4 Rd7 16. dxc5 Bxc5 17. Ne5 Nxe5 18. Bxb7 Nd3 19. Bc3 Rxb7 20. Rxd3 Rd7 21. Rad1 Rxd3 22. Rxd3 Qc8 23. Qg4 f6 24. h4 Be7 25. h5 Rd8 26. h6 g5 27. Rxd8+ Bxd8 28. Qa4 Kf7 29. Qxa7+ Bc7 30. Bd4 Kg6 31. Bxb6 Bxg3 32. Qg7+ Kh5 33. Qxf6 Bh4 34. Bd4 e5 35. Bxe5 Qg4+ 36. Kh2 Qe2 37. Qf7+ Kg4 38. Kg2 1-0