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Subject: Re: 5 & 6 Piece EGTBs / one step further

Author: David H. McClain

Date: 04:14:53 01/15/04

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>>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
>
>
>That is inconclusive.  IE you can take crafty, crank it up with 6 pieces
>and see the disk light go.  You can then type egtb=5 to limit it to only
>5 piece tables, and the disk light will _still_ burn because it is easy to
>remove one piece and get a hit.
>
>If you set up a position with 6 pieces only, it should not even search, it
>should stop with an egtb score and wait for your move.

Gentlemen,

Thank you for the explanations.  I appreciate all your input and have learned
again!

Allow me to take this one step further and I know this has been discussed
before.  If this is the case then are 6 EGTBs REALLY worth having?  Is it worth
having on your hard drive for access?  I really have no way of telling but I
simply have a few of the common ones along with the 5 EGTBs because "most
everyone else" does it.  Does the power of the computer directly effect the
usefullness of using the larger EGTBs?

DHM



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