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Subject: Re: a response to James walker about tablebases

Author: James T. Walker

Date: 15:19:46 01/19/01

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On January 19, 2001 at 04:58:14, Uri Blass wrote:

>I cannot post response because when I tries o do it I get an error message so I
>decided to post a new messages.
>
>I think that the game Deep Fritz-Rebel is not a good example of a win because of
>tablebases.
>
>Deep fritz was lost a lot before move 75
>
>In the following poswition Crafty can see mate in 47 against itself at depth 20
>after a long search.
>
>[D]8/8/pr6/6k1/KP6/8/5R2/8 b - - 0 1
>
>
>I think that Deep fritz has a problem in the evaluation of the position and
>evaluates it as 0.00 at small depthes for some unknown reasons.
>
>Uri

Hello Uri,
Can you please explain more?  I'm really interested in this game/position.  It
was not "Deep Fritz" it was Fritz 6.  I don't see what you mean that deep Fritz
was lost before move 75.  Fritz was playing white and won so where exactly was
it lost?  Fritz was getting tablebase hits as early as move 55.  That's why I
think it won.  I think the tablebases help guide Fritz to the winning line.  Am
I wrong here?  I thought Rebel should have drawn the game but made an error
around where you made the diagram.  I thought if Rebel also had tablebases it
would have drawn the game.  Can you please explain more? Sorry if I'm dense but
I'm not a good chess player.
Jim



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