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Subject: Re: Bonus points for side to move in qsearch?

Author: Carlos del Cacho

Date: 06:14:50 01/07/01

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On January 06, 2001 at 11:57:10, James Swafford wrote:

>On January 06, 2001 at 10:45:05, Leen Ammeraal wrote:
>
>>In qsearch, when no more captures are possible,
>>I return the material score, including the
>>position evaluation. Should this include
>>some extra points for the side that is to move
>>rather than ignoring this aspect?
>>After all, although there is no time to evaluate
>>any further moves, it is likely that the position
>>will be improved by the side that is to move.
>>I could not detect any improvement of my program
>>when I tried. What is usual in this regard?
>>If a bonus for the side to move is reasonable,
>>how many centipawns should this be?
>>Leen Ammeraal
>
>I've heard of programs that do this - award a bonus for being
>on move.  Side to move is, afterall, a part of the position,
>so I guess it's logical to factor that in, but I have no idea
>how valuable that is.
>
>It seems to me that what really matters isn't the fact that
>you can move next, but how much damage you can do with that
>move.  Giving some arbitrary value for being on move will
>not adequately "cover" how much "damage" you can do on the
>next move, it just assumes you can somehow improve your
>position.

Isn't this the same assumption we do with nullmove? I think it is not such a bad
idea. You can always improve your position unless you're in zuzwang. My guess.

Greets,
Carlos

>
>Knowledge like "how many pieces am I attacking?" and "how many
>of my pieces are being attacked?" seems much more valuable.
>And pretty expensive to obtain...
>
>--
>James



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