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Subject: Re: What is the rating of Virtual Chess II ?

Author: Didzis Cirulis

Date: 02:23:14 11/14/00

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On November 14, 2000 at 04:34:09, Andreas Stabel wrote:

>I just recently tested VC II, and I must say that it look strong in short
>time controls, but I used it to analyse a game with a couple of minutes to
>several hours of thinking time pr. move. What I saw then was that VC II has
>terible move ordering when thinking for a long time. I don't know if VC II
>needs hash hits to be able to perform sensible move ordering or if it is
>some bug. In a position where a rook could be hit by a pawn and thereby
>cause a cutoff in the search very quickly, VC II kept trying moves like
>pushing the pawn forward first and this caused it to almost completely
>stop on ply 11. This was not just something that happened in one position,
>but it happened all the time in several of the moves of the search.
>
>I was a bit surprised by this since it seems to play very well with
>thinking times of a couple of minutes pr. move.
>
>Best regards
>Andreas Stabel

Thanks for all this information! As concerns me, I have not seen any bug in VC
II interface yet. Works perfectly for me. I am going to play a 12 games match of
Virtual Chess II vs Gambit Tiger 1.0. (Celeron 500, 24MB ram for each program,
game in 1 hour, ponder off, my standard method for playing two programs on one
PC). Game 1 in progress. Small advantage to Gambit.
I have not tried to analyze games using VCII. Will try later.

Didzis Cirulis




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