Author: Richard Pijl
Date: 02:03:51 03/23/04
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On March 23, 2004 at 04:35:49, Tord Romstad wrote: >[D]k1r5/p5n1/1prp3p/5p2/P1PPp1pP/2P1P1P1/3KBP2/1R4B1 w - - > >This position occured in a blitz game on the ICC with Gothmog (white) against >Arasan. Of course, as is immediately obvious to a human observer, white is >dead lost. It's impossible to activate the bishop on g1, and white is >effectively a rook down. > >To my disgust, Gothmog was quite happy about its position, and showed a small >plus score. And because Arasan appeared to be equally clueless about the >position, Gothmog even went on to win after a really ugly endgame. > >After the game, I decided to check Gothmog's static eval for the position. >It thinks that white has an advantage(!) of 0.24 pawns. Of course it >notices the bad mobility for the bishop on g1, but it doesn't understand >that it will never be possible to activate the bishop without loss of >material. > >How do other engines evaluate this position? > >Tord I checked this position against multiple Baron versions. When feeding this position to my development version, the static eval is -0.77, and a short search shows a score around -1.5 The Baron 1.2.0 gives a very small advantage for white: 0.05, but after a short search the score drops to -1.4 The older version 1.0.5 shows a static eval of +0.02, and after a similar short search gets a score of around -1.2 The ancient version 0.99.5a shows a static eval of -0.34 and after a short search the score drops only a little: -0.8 bye, Richard.
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