Computer Chess Club Archives


Search

Terms

Messages

Subject: inaccuracy of numerical score of (top) engines

Author: jefkaan

Date: 08:31:09 10/30/03


just being curious, i wonder what sort of opinions
people in this forum have about:
1)  the (inc)accuracy of the scores of different engines
in middle/ (practical)endgame positions, and 2):
the variation the scores of different (top)engines
(besides scaling factors of a positional nature).

Reasons for my question:
1) when playing standard with a reasonable engine
(yace) against top-engines i'm setting my
resign score lower every time, eg. when its
below 3 i usually already can consider resigning;
on the other hand, when i'm above +2, chances
my side/engine will be winning are above 90 %
(in lightning it can change a bit more,
especially in gambit type of play, but
then its just a matter of doubling the
win/lose score i guess).
2) when evaluating openings i wonder what
the best positional engine would be, maybe
Hiarcs9, maybe Shredder, i just dont know.
Altogether they are not so much different
in their judgments (ie numerical evaluations), i
suspect, may on average about 0.3 pawn standard
deviation difference in the cross correlations,
or whatever you could use in statistical sense
(although  in some difficult positions
computers still sometimes are considerably
different ie more stupid than human IM/GM evaluators,
yep i know, or at least i believe that, at least
when its a GM above the 2800 scale or so)

Thanks in advance for your thoughts on this
best regards,
jefk
PS and dont tell me btw i'm an idiot who
doesnt know anything about chess, i know
that as i've heard that already for some 10
yrs now (mainly from a limited nr of people),
but i'm still learning, you know :)





This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.