[Event "NED-ch U18"]
[Site "Delft"]
[Date "1966.??.??"]
[Round "7"]
[White "Timman, Jan H"]
[Black "Klaassen, Chris"]
[Result "1-0"]
[ECO "E89"]
[PlyCount "61"]
[EventDate "1966.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. d5 c6 8. Qd2 cxd5 9. cxd5 Nbd7 10. Nge2 a5 11. g4 h5 12. h3 Nh7 13. h4 hxg4 14. fxg4 Nb6 15. Ng3 Bxg4 16. h5 g5 17. Be2 Bd7 18. Nb5 Nc8 19. h6 Bh8 20. Rg1 Bxb5 21. Bxb5 f6 22. Qe2 Ne7 23. Qg4 Rf7 24. Bd7 Nf8 25. Be6 Nxe6 26. dxe6 Rh7 27. Bxg5 Kf8 28. Rf1 Ng8 29. Qf5 Qe7 30. Qg6 Rc8 31. Nf5 1-0

