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Subject: Re: Analysis, fortress draws, and hash tables

Author: Robin Smith

Date: 21:03:48 08/07/04

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On August 07, 2004 at 23:49:26, Stuart Cracraft wrote:

>I liked Zobrist and Kalme's research many years ago into this subject.
>Kalme would provide a series of patterns to guide the program. Not specific
>positions. Another example is David Wilkins program for tactical problems.
>
>Good to hear this kind of interest is still alive in this search-exhausted
>brute-force selective-days. I am pro-patterns and pro-learning! But
>the implementation is bedeviling.
>
>Stuart

I can well imagine that "implementation is bedeviling" for "patterns to guide
the program". That is why I am suggesting being able to enter "specific
positions". Any while I have no doubt that for playing games this would be of no
value what-so-ever, I believe that for anaysis it could be very powerful. Any
time the analyst can confirm that a position the program says is +3.0, when it
really should be 0.0, the analyst can plug the programs blind spot. In other
cases, if the analyst wants to avoid some murky looking complications, he could
enter a position evaluation of -10.0 for the position after entering the
complications and see if there are any other clearer paths to an advantage. I
can imagine many possible uses, but only for analyisis, not for improving engine
play.

P.S. I noticed in you profile that you mention John Stanback. I met him at his
home several years back, he lives in the same town as me (or at least he used
to). A very pleasant fellow. Do you know if he still does any chess programming?

-Robin



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