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FS#20177 - Crafty opening book version is too old for program

Attached to Project: Community Packages
Opened by Mikey Von Mike (mikeym) - Wednesday, 14 July 2010, 12:58 GMT
Last edited by Allan McRae (Allan) - Thursday, 15 July 2010, 04:17 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Allan McRae (Allan)
Architecture All
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No



The crafty package community/crafty 23.2-1 (in my case for x86_64) installs an opening book that is too old for the installed program. Running crafty on its own gives:

$ crafty
unable to open book file [/usr/share/crafty/book.bin] for "write".
learning is disabled

ERROR! book.bin not made by version 23.0 or later

Crafty v23.2 (1 cpus)


Version 23.0 does not appear to be backwards compatible with older books. New books can be created with the command:

$ crafty binfile create myfilename.pgn 60

However the creators site ( only seems to have enormous books available.

Additional info:
* package version(s)
* config and/or log files etc.

Steps to reproduce:
This task depends upon

Closed by  Allan McRae (Allan)
Thursday, 15 July 2010, 04:17 GMT
Reason for closing:  Fixed
Additional comments about closing:  crafty-23.2a-1
Comment by Mikey Von Mike (mikeym) - Wednesday, 14 July 2010, 13:59 GMT
Sorry my info on creating a new book is bad:

This is how it's done (download a pgn openings file such as from Also download start.pgn and startc.pgn to the same directory. Extract

book create enormous.pgn 60
books create start.pgn 60
bookc create startc.pgn 60

This is taken from