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Subject: Re: Tbs and F6 gui

Author: William Penn

Date: 20:48:33 11/29/01

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On November 29, 2001 at 17:52:39, Scott Gasch wrote:

>On November 29, 2001 at 17:38:14, Gei Hysenbegasi wrote:
>
>>i recently downloaded the tablebases (3, 4, and 5 men) from Dr. Hyatt's site,
>>and now my fritz will not start. It will open up and close right back down
>>again. If i change the Tb path i can open it and then change it back however i
>>am not able to load any other engines to it, if i try it will close back down
>>again.
>>i have emailed chessbase about this already and have received no response from
>>them, so please if any one knows how to fix this let me know.
>>
>>Thank You
>>Jay
>
>http://www.icdchess.com/forums/1/message.shtml?199544

Isn't that a "Catch 22" situation. If you can't start the Fritz 6 interface, you
can't run the Crafty engine!?

If corrupt tablebase files are indeed the cause of the problem(?), it should be
possible to locate the bad tablebase(s) by a process of elimination:

(1) Move half of the tablebases to a different folder.

(2) If Fritz still refuses to start, you know there's a bad tablebase(s)
remaining in the original folder.  So move half of those to a different folder,
etc.

(3) But if Fritz then starts OK, you know the bad file(s) was in the portion
that was moved into a different folder. Etc.

It shouldn't take too many such moves/substitutions to narrow down the
possibilities and locate the bad file(s).

Another approach would be to compare the number of bytes in each downloaded file
versus the number of bytes in the file on the ftp site. This won't necessarily
find the bad file(s), but it might.

Or you could test the downloaded files using the lists of MD5SUM strings which
are included in each of the tablebase folders on the ftp site. Reference:
http://www.linuxiso.org/md5sum.html
I'm not an expert and just found out about MD5SUMs today. Haven't tried it
yet...

WP



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