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Subject: Re: Chess PRogram Improovment

Author: Rex

Date: 08:08:11 08/15/03

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On August 15, 2003 at 10:51:23, Osorio Meirelles wrote:

>
> What percentage of the time does rewriting a top chess program take compared to
>reevaluating the paramenters (weights such as King safety, passed pwans, etc ...
>)?
>
> Is there a trend in a way that future versions of these programs will
> have hundreds of parameters which could be changed and we will eventually see
> an increase every year in the percentage of time for parameter estimation, or
> there will always be a significant portion of time spent in rewriting the main
>algorithm that will never be substituted by parameter estimation ?
>
>  Thanks.


I believe Chess Aurthors are beginning to realize how important it is to allow
chess users to have has much flexibility in changing engine parameters as
possible.

CM9000 for example has about as many engine tweaks as one can give.  Shredder
and Fritz also have adjustments.  We find these three programs advancing in
strength over the past few years because of users always finding "that better
setting."  I believe the Authors to these engines see this and can build a
better much stronger engine.  Chess Tiger on the other hand is very limited in
making adjustments and it shows.  This program has falling as one of the
strongest in the past year.  NO ADJUSTMENTS!!!

I believe having hundreds of people playing around with engine parameters and
posting them for others to see and test is better than one person testing the
engine over and over, even though its its his/her own.

Look at how much stronger Rebel has gained by having users play with weights and
settings.  Ed now can take this info and make adjustments with the code.  Watch
Deep Sjeng do the same thing.

Now there are code adjustments and there are weights and settings adjustments.
Dont get me wrong.  Code adjustments need to be given to the Author!!

My two worthless cents-:)




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