Author: Uri Blass
Date: 06:28:04 01/01/03
Go up one level in this thread
On January 01, 2003 at 09:20:56, Brian Richardson wrote: >On January 01, 2003 at 08:48:39, Omid David Tabibi wrote: > >>[D] r1bqk1nr/pppp1ppp/2n5/2b1p3/1PB1P3/5N2/P1PP1PPP/RNBQK2R b KQkq b3 0 4 >> >>The Evans Gambit, arising after 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4, is a good >>example of positional material sacrifice. By sacrificing his b pawn, white gains >>a number if precious tempos, thus seizing the opening initiative. While the 4.b4 >>gambit might not be better than the other 4th moves here, it usually reaches a >>balanced position in which white has enough compensation for the sacrificed >>pawn. >> >>Now let us see how the top engines evaluate this position. There is not much >>tactics involved here, so this gives us a good opportunity to compare the >>programs' evaluation (their chess knowledge). >> >>In the table below, the evaluation of each engine is recorded after 1 minute >>analysis (since the evaluation is largely positional, no significant score >>change was noticed from one ply to another, so most probably even deeper >>searches will not change the result): >> >> >>Engine Score >>------ ----- >>Junior 7 0.06 >>Fritz 7 -0.41 >>Shredder 6.02 -0.33 >>Chess Tiger 14 -0.82 (Gambit Tiger 2 also produced the same score) >>Hiarcs 8 -0.84 >>Crafty 19.1 -0.81 >> > >Scores are from what perspective? >Crafty uses - for black ahead, I think. >Not sure about the others, so -xx could be good for white? I think that it is clear because no computer will give big advantage for white. It means that all the scores are from white's perspective. Movei give scores from the perspective of the side to move but it is no problem to translate it to white. Uri
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