[Event "NED-ch"]
[Site "Leeuwarden NED"]
[Date "1971.04.13"]
[EventDate "?"]
[Round "8"]
[Result "1/2-1/2"]
[White "Tim Krabbe"]
[Black "Willem Andriessen"]
[ECO "B49"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "50"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6
7. Be2 b5 8. Nxc6 Qxc6 9. O-O Bb7 10. Bf3 Ne7 11. e5 Qc7
12. Bxb7 Qxb7 13. Bc5 Rc8 14. Bb4 a5 15. Bd6 b4 16. Na4 Ng6
17. Bxf8 Nxf8 18. Qd4 Ng6 19. Nb6 Nf4 20. Qxf4 Qxb6 21. a3 O-O
22. axb4 Qxb4 23. Qxb4 axb4 24. Rfc1 Rc5 25. f4 f6 1/2-1/2