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Subject: Re: Please help with a bug in my program - with Diagram :)

Author: Robert Hyatt

Date: 15:46:33 09/06/02

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On September 06, 2002 at 16:26:35, Dann Corbit wrote:

>On September 06, 2002 at 16:10:56, Robert Hyatt wrote:
>[snip]
>>>>[D]7k/pp3p1p/1np5/5N2/1P2P1NR/7P/3r2PK/2r5 b - - 0 50
>[snip]
>>I don't see this as a "pattern" problem.  It looks like you need to check
>>two things:
>>
>>(1) your search extensions.  IE are you extending on checks at least?   and
>>a whole ply?
>>
>>(2) are you sure your checkmate detection is working?  Allowing a short mate
>>with a 10 ply search suggests you are overlooking something.  The question is,
>>what?  and  why?
>>
>>Are you doing any odd stuff like futility pruning, razoring, null-move, etc?
>
>What about king safety?  Three big boys in the box ought to cause some
>consternation.


Possibly, yes.  But this particular "problem" looks more like search than
evaluation.  It is a pretty easy mate to find if you let that knight get
to f6...



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