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Subject: Re: Serious Fritz/Deep Fritz endgame bug!

Author: Uri Blass

Date: 00:26:49 01/26/01

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On January 26, 2001 at 00:42:48, Jouni Uski wrote:

>[D]8/k7/8/2R5/8/4q3/8/4B2K w - -
>
>In this old test position only Bg3! draws. I have all 3+4 Nalimov tables. When
>I test position with Fritz it always wants to play Kg2?? Why? Why?
>I see, that it is not doing any TB access at all! Changing selectivity or
>TB dept for engine doesn't help either. This is ridiculous, Fritz should
>solve this without 10 GB of 5 piece TBs.
>Crafty, Gandalf, Goliath see Bg3 fast.
>
>Jouni

The bug is more serious.

Deep Fritz does not look at tablebases also in some KRN vs KQ positions that I
tried.

It seems that sometimes Deep Fritz does not like to have less material in the
board so it punishes itself by not looking at tablebases.

Uri



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