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Subject: Re: Crafty - annotate

Author: Steve Coladonato

Date: 11:53:31 10/28/01

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On October 28, 2001 at 09:31:10, Robert Hyatt wrote:

>On October 28, 2001 at 08:18:55, Steve Coladonato wrote:
>
>>I have extracted my lost games from SCID into a pgn file and have used crafty
>>17.9 to do the annotation with "<colors|name>" set to my name.  This is a great
>>feature because it determines which color I was playing and then analyzes the
>>moves only for that color.  The evaluations in the "can" file appear to be
>>"relative" evaluations and I was wondering if there is an argument that would
>>produce "absolute" evaluations. The crafty documentation does not refer to one.
>>
>>The command I used was: "annotate mylosses.pgn Coladonato 5-99 .15 20" which
>>gets me to an average of ply 11 on my PC.
>
>
>I am not sure about "relative" vs "absolute" unless you mean how it finds the
>best move, and then if the played move is XX worse relative to the best, then
>it outputs a PV and score for both?  I don't see how that could be done in an
>"absolute" way.
>
>If you mean how it displays all scores with +=good for white, -=good for black,
>that is just a design decision that makes the scores easier to understand.

Dr. Hyatt,

Yes, I was referring to absolute meaning +=good for white and -=good for black
and relative meaning +=good for whomevers move it is -=good for the other color.
 e.g. When it is analyzing when I'm the black player, -1.40 for the moved played
vs -.60 for what crafty selected indicates that white (my opponent) is actually
+1.40 (absolute) for the moved played and would only be +.60 (absolute) for the
selected move.  Am I interpreting the score correctly?

If that's the correct interpretation, I can write an awk script to change the
scores when I'm the black side.

Thanks.

Steve



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