Author: Robert Hyatt
Date: 08:35:05 10/30/03
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On October 30, 2003 at 11:31:09, jefkaan wrote: >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). Remember, Einstein said "everything is relative". :) The absolute score really doesn't mean a lot. What matters is the difference in scores between different positions. IE does a bigger + really mean a bigger advantage? Comparing scores between two engines is just like comparing search depths, or anything else. > >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 :)
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