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Subject: Re: To check or not to check, this is the quiescence question

Author: Tord Romstad

Date: 05:45:31 10/14/03

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On October 13, 2003 at 16:50:41, Robert Hyatt wrote:

>On October 12, 2003 at 11:57:40, Tord Romstad wrote:
>
>>Another reason I cannot solve your position is that I only include checks in the
>>qsearch in middle-game positions, and your position is classified as an endgame
>>position.
>
>There is another problem.  In most cases, the check will be "unsafe".  IE
>it hangs the rook.  Of course the rook can't be captured without forcing a
>stalemate.  But the check itself looks unsound using SEE or whatever, which
>makes it even harder to find unless you look at _all_ checks.  And that _will_
>explode the tree to unbearable space.

Yes, I forgot to add that.  This is one of the numerous restrictions I
have on which checks to search:  I never search checks for which the SEE
returns a negative score.

Tord



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