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Subject: Re: YACEAnnotate Function.

Author: Steve Coladonato

Date: 10:57:03 04/06/05

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On April 05, 2005 at 17:10:36, Dieter Buerssner wrote:

>On April 05, 2005 at 15:13:26, pavel wrote:
>
>>I actually like the YACE annotation function very much. Is there any way, that
>>YACE would not annotate (analyze) the moves that are already in it's book?
>
>Unfortunately, it is not possible at the moment. I may implement it soon - it
>should only be little work. Another possiblity would be, instead of giving some
>analysis PV, to give some book info instead (like how many games are in the book
>for each book move available).
>
>Regards,
>Dieter

Dieter,

Before I start, I'd like to say that I am very pleased with the Yace engine and
Crafty as well.  I run a Linux box and do all my analysis in the background
(nohup...&) and it is great.  The following is a comparison of a couple of the
features between Yace and Crafty.

I use both Yace and Crafty for my analysis and compare the results of both.  The
analysis is mainly for OTB games I have played and an occasional game I play
against a computer (not many).  There are two things that Crafty does that Yace
currently doesn't do and one thing that Yace does that Crafty does not.

The two things Crafty does is:
1) it allows you to analyze games based on the player's name and not just b|w|a
This allows me to send it a pgn with multiple games in it, supply my name, and
the analysis is done from my point of view.
2) the scores are absolute and not relative meaning that plus(+) scores indicate
white's favor and negative(-) scores indicate black's favor regardless of what
side it is analyzing from.

The one thing that Yace does is:
1) it gives a score for every move regardless of what side it is analyzing and
only shows the variation for the requested side when that score is greater than
the margin that is provided.  Crafty only shows the variation and score for the
requested side when the score is greater than the margin.

If Crafty were to incorporate the Yace feature and Yace were to incorporate the
Crafty features I would have the best of both worlds.

By default, Crafty analyzes all games in a supplied pgn file and Yace annotates
only the given game on the command line.  I don't know which is better here.
However, there are many times where I have a 5 or 7 game tournament pgn file and
I want to analyze them all.  With Yace, I create a command script having the
game number and the side to analyze for each game.  With Crafty, I supply it
name of the pgn file and my name and away it goes.  It would be nice if both
added an argument for the game to analyze where zero(0) would mean do all games
in the file and a number greater than zero would be only for that game in file.

Regards.

Steve



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