Author: pavel
Date: 00:35:07 05/15/00
Hi guys,
Can anyone tell me how the positional.lrn of crafty works? I know that
its probably explained in the crafty.doc, but i couldnt find answers to some of
my questions (or i missed them). Anyways I wanted to know how the positional.lrn
works....as in, how does it chose its move to save it in the positional.lrn
file. Ofcourse it doesnt save all its move from a single game, but which moves
does it consider to save it to the file? and how does it avoid them if
encountered in the future? Thus it save the "good" moves or the "bad" moves?? or
both?
--------------------------------------------------------------------------------
What does these logs mean? I understood it giving a fen position for each 'logs"
but what is the numbers below them? eg, {-1582 22964 540}. the best part is it
also gives the dates ;)
[White "Crafty 17.9"]
[Black "unknown"]
[Date "2000.05.15"]
setboard /4B2p/6p/2bk/p/6PK/1r// w
{-1582 22964 540}
[White "Crafty 17.9"]
[Black "unknown"]
[Date "2000.05.15"]
setboard /7p/6p/2bk2B//p5PK/1r// w
{-1613 20646 480}
[White "Crafty 17.9"]
[Black "unknown"]
[Date "2000.05.15"]
setboard /7p/6p/2b/4k/p5PK/1r/2B/ w
{-1638 6038 480}
[White "Crafty 17.9"]
[Black "unknown"]
[Date "2000.05.15"]
setboard 3r1r1k/p3bPpp/2bp1n/5R/1q1BP/1Bp/PPP1Q1PP/1K1R/ w
{-88 54427 480}
[White "Crafty 17.9"]
[Black "unknown"]
[Date "2000.05.15"]
setboard 3r1r1k/p3bPpp/2bp/5R/1q1Bn/1Bp/PPP3PP/1K1R1Q/ w
{-243 38025 480}
-------------------------------------------------------------------------------
Now about CBD database program, I find it very "kool" freeware product
;). an excellent thing to analyze your favourite games with crafty. But there is
something differant about analyzing with crafty through or without CBD or any
other programs. It is so because if you analyze your games with crafty through
CDB it tends to save its "bad" or "good" moves in the positional.lrn file. Also
another thing is that it logs more in the positinal.lrn file if analyzed under
CDB. Let say for example, yesterday i played a game between "crafty vs TCB" and
crafty saved 2 logs to its positional.lrn file. The game was 15 min per side,
later that day i made crafty analyze that "whole same game" under CDB for an
hour, but this time it did 7 logs to positional.lrn file !!.
Another question, If i make crafty analyze Most of its game under CDB (i have
more than 200 games save in PGN), and as a result make it learn from its
"mistakes" made in its previous games. Wont it make "my crafty" "sharper"? and
thus avoid those positional mistake made earlier?
thanks
Pavel
ps, i guess i ask too many questions, and also i hope "Bob" answers to my
questions ;)
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