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Subject: Re: Crafty - annotate

Author: Robert Hyatt

Date: 13:38:04 10/28/01

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On October 28, 2001 at 14:53:31, Steve Coladonato wrote:

>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


That is correct.  _every_ score displayed is +=good for white, -=good for
black, whether it is in the log files, whispered/kibitzes on a chess server,
or displayed in annotated game comments...



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