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Subject: Re: Wrong endgame evaluation by Junior 7

Author: Uri Blass

Date: 13:19:46 01/02/02

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On January 02, 2002 at 16:16:14, Rafael Andrist wrote:

>On January 02, 2002 at 16:14:17, Uri Blass wrote:
>
>>On January 02, 2002 at 14:24:04, Hansjoerg wrote:
>>
>>>In the following position Junior 7 plays as black Ba5 (eval 0.00).
>>>and is mated in 3 moves. The evaluation stays at 0.00 until the mate.
>>>
>>>6k1/8/2N1N1K1/8/8/8/8/4b3 b - - 0 77
>>
>>Junior7 knows that 2 knights cannot mate.
>>
>>If you want it to solve the position you can change the parameters and tell
>>it not to use knowledge of insufficient material but the program is going to
>>play weaker because in more than 99.99% of the practical cases the knowledge of
>>Junior is correct.
>>
>>Is this position from a practical game?
>>
>>Uri
>
>Does Junior stop the search in such cases? Otherwise it should see the threat.
>
>Rafael B. Andrist

Yes

Junior stop the search when it knows that the position is a draw in order to
save time by not searching irrelevant lines.

Uri



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