[Event "IBM"]
[Site "Amsterdam"]
[Date "1971.07.29"]
[Round "14"]
[White "Langeweg, Kick"]
[Black "Keres, Paul"]
[Result "1/2-1/2"]

1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7 4. O-O e6 5. d3 Bd6 6. h3 Bh5 7. e4 c6 8. Qe1 Ne7 9. Nbd2 O-O 10. Nh4 Qc7 11. d4 Ng6 12. Nhf3 Bxf3 13. Nxf3 dxe4 14. Qxe4 e5 15. dxe5 Ngxe5 16. Nxe5 Bxe5 17. c3 Rfe8 18. Qf3 Nb6 19. Rd1 Re6 20. Bd2 Nc4 21. b3 Rf6 22. Qe2 Nxd2 23. Qxd2 h5 24. f4 Bd6 25. h4 a5 26. Re1 Rd8 27. Qe2 Rg6 28. Qf3 1/2-1/2