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Subject: Re: Shredder 7.04 6 Piece EGTBs?

Author: margolies,marc

Date: 13:17:29 01/14/04

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Hi David,
My understanding of S7 is that when it calulates a simplified position it then
looks it up in the EGTB and stores the result in an EGTB hash table. This should
explain to you why you will find hard drive EGTB hits in 6-piece positions with
Shredder_7 although this previous Shredder version is NOT 6-pc nalimov enabled (
because it does not have the newest dll for tbaccess ).
-Marc
ps presumably by installing S-8 and the new tbaccess.eng you **might**
retroactively 'improve' S-7 but I cannot know this- (it's a gui consideration)



On January 14, 2004 at 16:08:24, David H. McClain wrote:

>On January 14, 2004 at 15:07:39, Chris Taylor wrote:
>
>>Does S8 know how to use the 6 piece egtbs'?  I could wait for it to arrive, nah;
>>please tell me!  I have ordered the dam things and would like to know if I have
>>wasted my GBPs.
>>
>>
>>Chris
>
>Chris,
>
>Being an amatuer here perhaps I am making an incorrect assumption about this.
>
>When I use my Shredder 7.04 the heavy hard drive activity appears to indicate it
>is accessing EGTBs tablebases when there are six pieces left on the board.  I
>have assumed all along that this indicates that Shredder 7.04 is using a few of
>my 6 piece EGTBs or is at least looking for them.  Shredder Classic GUI also
>states "6 piece EGTBs found" when changing hash table size for them.
>
>Hopefully one of our experts on this can either confirm or refute this.  If this
>is in fact true then I see no reason why S 8 would not do the same.
>
>DHM



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