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Subject: Re: Fritz 5.32 and endgame databases

Author: James T. Walker

Date: 20:00:59 01/25/99

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On January 25, 1999 at 22:48:02, Nuno Maltez wrote:

>Hi,
>
>I've stumbled on what looks like a silly problem (bug) using Fritz 5.32 and
>endgame databases. I don't know if this has been mentioned before, but I've
>don't remeber reading anything about it neither here nor in rgcc (I don't read
>every post though), so here it goes:
>
>Take the following position (Black to move):
>White: Kg6, Rh4, Ph3
>Black: Kg8, Rf7
>
>I was playing black (we got here from an endgame position taken from a textbook)
>and moved 1...Rg7+. Fritz using the databases evaluated all continuations as (0)
>and played 2.Kh6. I replyed 2...Rh7+ and here Fritz evaluated again all moves as
>(0) and played the unbelievable 3.Kg6?? losing the rook and the game. After
>3...Rxh4 it returned to the normal engine and quickly realized white is lost.
>
>Has anyone faced this problem before? I'm using a Fritz 5.32 update downloaded
>from Chessbase's site late December. I've not tested other positions, but it
>looks like the program's not noticing the difference between a draw and a loss
>(database problem?). Is this some configuration problem or what?
>
>Thanks in advance,
>Nuno

Hello,
I've just tested your position with my Fritz 5.32 and it does the same thing.
Please inform Chessbase about the bug.  I think they are tired of hearing from
me concerning problems with their software.  Fritz 5.16 had a very similar
problem also with rooks on the right side of the board.
Jim Walker




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