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Subject: Re: finding when a move is obvious.

Author: Eric Oldre

Date: 21:26:34 04/13/04

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After you find the 1st "good" move don't you narrow the alpha beta window so
that you don't know how much worse the 2nd move is, only that it is not as good
as alpha?

Or do you not narrow the window at the root node? that seems like it would
greatly expand your search tree.

or am i missing something else?


On April 14, 2004 at 00:09:24, Robert Hyatt wrote:

>Simple idea:
>
>a move is "easy" and can be made after using less than the planned time limit if
>and only if
>
>1.  estimated score for first root move is way higher than the second move.  IE
>say 2.00 better.
>
>2.  This is a recapture.  IE opponent just captured a piece of ours and we are
>recapturing on the same square.
>
>Other types of "easy" moves have higher risk to stop the search early...
>
>
>>
>>Thanks,
>>Eric Oldre (new chess programmer)



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