Author: Robert Hyatt
Date: 10:18:08 12/12/98
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On December 12, 1998 at 05:45:03, blass uri wrote: >I read in gambitsoft about 2 programss for solving problems but they did not say >if they are the best programs for solving studies(white begins and wins or white >begins and do a draw and not mate in x helpmates in x , or selfmates in x) > >Is there a test for finding which program is best in solving studies > >I know that Junior5 is not the best program for this purpose because the >underpromotion problem > >Fritz5 is also not the right program because Ifound that there are studies that >it can never solve because it does not analyze moves with no threat. > >I think that Crafty has not this problem(It analyze moves with no threat to >reduced depth but fritz5 does not analyze even to reduced depth moves with no >threat). > >Uri You are asking a question that is almost impossible to answer. Crafty has the following 'plusses': (1) probes databases in the search, while most programs probe at the root, currently (I think Marty probes inside the search in mchess pro...) (2) no "forward pruning"... I use null-move of course, but I don't throw out moves without any search at all. (3) fairly fast with a fairly decent evaluation that understands many parts of the endgame... It has the following 'minuses': (1) not as smart as some programs. (2) not as fast/deep as some programs. these are offsetting in ways, so it is a "pay your money and take your chances.." :) Bob
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