Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Fritz6a major Endgame BUG !

Author: Bernhard Bauer

Date: 00:04:45 04/10/00

Go up one level in this thread


On April 09, 2000 at 22:56:04, Robert Hyatt wrote:

>On April 09, 2000 at 20:08:41, Laurence Chen wrote:
>
>>Thanks for your output. Your data demonstrates that Fritz 6 has some kind of bug
>>when accessing the tablebases. But it managed to win.  Perhaps, Robert Hyatt can
>>explain or someone, I always thought when a chess engine accesses tablebases and
>>finds a distant mate in XX moves, it will play the best move to mate.  Fritz 6a
>>shows a very odd behavior, as seen the score of the game provided below, it
>>plays moves which extends the mate, noticed that from move 100 to 105, the mate
>>announcement keep jumping up and down between mate in 16 and 17.  I take this to
>>be a bug in the Fritz 6a.  I don't see this kind of behavior in my other chess
>>engines. So what's your opinion?
>>Laurence
>
>
>first suggestion, since you downloaded files, check the sizes between what
>you have and what is on my machine. They must match _exactly_.  Not one byte
>bigger or smaller, otherwise that file is unusable.
>
>even a one byte change will change mates into draws and so forth.
>
>

A download error may not always be recognized by the user - and there
are many files. I once had such a corupted file which made trouble.
So perhaps it would be nice to have a tool to check the egtb file sizes.
It's a pain to do it by hand.

Kind regards
Bernhard



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.