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Subject: Re: How is the cAP-code in Crafty 17.0 doing?

Author: Robert Hyatt

Date: 09:52:11 10/23/99

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On October 23, 1999 at 11:14:07, Michel Langeveld wrote:

>Thanks in advance.
>
>I want to try it myself ;-)!!!
>
>Michel Langeveld


It is too early to say.  Compared to the opening book I use, less than 100K
of the positions have CAP scores.  Which means that many positions have no
data at all.

Another problem is that the CAP data is of the form

  <position>  <score>  <best move>

I can use that... but what I _really_ need to do, and I don't have the code
to do yet, is to do a simple minimax of the CAP scores back up thru the book.
IE if the best move in position P is Rh1 with a score of +1.3, then I need to
know that any move that leads to position P (with no cap score in the file)
ought to have a score of -1.3.  I don't do this yet, which hurts.  I think it
will be even more useful once I have time to write that code.



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