Author: Uri Blass
Date: 10:24:57 10/25/01
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On October 25, 2001 at 13:12:35, Christophe Drieu wrote: >On October 25, 2001 at 11:19:14, Uri Blass wrote: >> >>Fritz also has positional scores and I also do not understand what the playing >>style has to do with friend mode. >> >>If Fritz does stupid tactical blunders in friend mode than >>I do not see a logical reason for Shredder to avoid the same blunders under the >>same conditions. >> >>Uri >In friend mode, the engine send to the chessbase interface different variation >line with evaluation of the current position. The interface, choose a variation >with an evaluation that is equal to the best evaluation minus the handicap that >you can see when you start fritz in "friend mode". >If you play with a positionnal engine, the evaluation of the position will be >calculate with parameters like open line, passed pawn etc... If you play with >pure tactical engine, the position will be calculate with the values of the >figures (pawn=1,rook=5 ...). There are no tactical engines by this definition All the top engines including Fritz calculate parameters like passed pawns and open lines(I am sure at least for passed pawns). >So a positional engine will have an evaluation of the position larger than a >tactical one. There are programs with larger evaluation but the reason may be different. Program A can evaluate a pawn with an average value of 1.2 because 1 is the material value and 0.2 is the average positional bonus(the positional bonus may be bigger if it is a passed pawn or pawn on the 7th rank) program B can evaluate a pawn with an average value of 1 when the material value is 0.8. Choose a "bad positional handicap variation" will be best than >choose a "bad tactical handicap variation". Do you understand ? > >i am french, so excuse me for my english ;) I am from Israel so I guess that my english is not better. Uri
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