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Subject: Re: Chess Tiger 14.0 (for ChessBase) has an enormous bug

Author: Christophe Theron

Date: 03:10:53 07/10/01

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On July 09, 2001 at 16:08:46, Mike S. wrote:

>On July 09, 2001 at 15:04:13, Christophe Theron wrote:
>
>>It is a conscient choice I have made in order to speed up some low material
>>endings.
>>I have never reported a single problem because of this choice in a REAL game.
>>However I have got repeated complains from people who tried to make the program
>>solve STUDIES or PROBLEMS.
>>This is going to be improved in Chess Tiger 15.
>
>I assume you wanted to speed up Tiger's search, if such an situation appears
>somewhere at higher depths in the tree.


That's right.



> But what, if you imagine that Tiger
>reaches the winning side of these examples (I saw three of them in the last 2
>days). That looks ugly.


It looks ugly, but I have never seen it in a real game.

OK, that looks ugly.



>These are just "simple" positions (like they could be used i.e. in beginners
>books to learn basic tactical elements, or during the analysis of a real game),
>not sophisticated studies or problems...


Yes, that's right.

This design problem has been reported to me probably 20 to 30 times since the
release of CT14. I have stopped counting since.



>What about a *patch*, to cure serious problems of version 14.0, i.e. make 14.1?
>
>People are going to ask for a patch. I want to explain: Now, that you have made
>this excellent, successfull program which can win GM tournaments, the demand for
>perfection will be even louder than before.


Mmh... The demand for perfection has always been there, believe me. :)

There is no patch scheduled. The next thing that will come out of the Chess
Tiger lab is Chess Tiger 15 (not counting the Palm versions).



    Christophe



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