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

Author: Dave Gomboc

Date: 13:30:08 10/23/99

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On October 23, 1999 at 16:03:49, Michel Langeveld wrote:

>On October 23, 1999 at 15:56:36, Dave Gomboc wrote:
>
>>On October 23, 1999 at 12:52:11, Robert Hyatt wrote:
>>
>>>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.
>>
>>I would have had the minimaxing done already, but I'm tied up with course work.
>>It sounds like you'll get to it before I do.
>>
>>Dave
>
>Dave,
>
>Just because I'm curious... What's is your knowledge about the Crafty code. How
>much (%) do you understand of the code and have you ever changed/added code to
>Crafty?
>
>Regards,
>
>Michel Langevel;d

I've looked at certain parts of Crafty's code more than once, but I'd say that
my knowledge about the Crafty code base as a whole is pretty minimal.  Re:
changes/additions, I don't attempt to customize Crafty through changes to its
code.  (I just set some things via .craftyrc for CAP analysis.)

Dave



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