Author: Joachim Rang
Date: 13:27:36 09/29/03
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On September 29, 2003 at 16:04:56, Tansel Turgut wrote: >I am trying to learn how to use DPA..(for correspondence chess) I am not a >computer expert and it seems slightly complicated to me... > >I would appreciate if anyone can help me setting the numbers:(time, plies, >branching, etc).....(I am hoping to finish an analysis in 12-24 hours...) > >1)What settings are best in a middle game? >2)What settings are best for the endgame? >3)What kind of setting changes may be better for different chess programs( ie: >Shredder, Junior, Fritz, ChessTiger etc? >4)Do I need a higher RAM or a stronger processor (or dual processors) to have >better analysis? > >thanks.. >Tansel Turgut I'm not an expert, but examined the DPA quite a lot. First you need to restrict the possible variations, otherwise you get such a wide tree, that eihter the analysis will take days or it on every position the analysis will have only very little time. I.E.: If you choose three possible variations in first to forth ply and length of variation 8 plies, the analysis will have to look at 324 postitions, if there is no variation left out due to the error margin. If you give three minutes per position it will already take 16 hours to complete the analysis! I would choose a narrow evaluation window and allow only in the first two plies three possible variations but give the engine enough time to think on every position (about three to five minutes). Another strategy is to give the engine only 10 seconds on every position and choose many variations, but than you have a lot of stupid variations which are timeconsuming to check and you have a risk, that a hard to find move will not be found. I think DPA gives in generally no good results and think the interactive analysis of ChessAssistant 7 is much better and more flexible. regards Joachim P.S.: You don't need an especially fast computer or much RAM to ran the analysis. Of cours the faster the better the analysis ;-) P.P.S.: I don't think, that there are specila settings for special engines.
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