Author: Johan de Koning
Date: 23:19:02 04/01/04
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On April 01, 2004 at 14:07:22, Kurt Utzinger wrote: >On April 01, 2004 at 13:56:25, Jason Kent wrote: > >>I just read this in the FEG.txt that i got off the chessmaster website. >> >>XVI. WHY THE FEG FORMAT? ================================================ >> >>Perhaps, after reading all of this, you are wondering why Chessmaster >>9000 does not use either of the more commonly used EGDB formats, namely >>those created by Eugene Nalimov or Ken Thompson (both of which bear the >>names of their creators). There are many reasons for this: >> >>1. FEG data is about 20% smaller. Additionally, half-sets can be used if >> hard drive space is an issue, making a "full useable" file set that is >> almost 1/3 the size of the complete Nalimov file set. >>2. FEG generation is much faster and doesn't need a huge amount of free >> RAM to create a set of files. >>3. FEG can do any 6-man files on a 32-bit platform. >>4. The Thompson format is not a complete set (especially pawns on both >> sides are lacking). >>5. The Thompson format stores DTC (Distance to Conversion) values, >> meaning that it stores the number of moves to either mate OR to a >> capture/promotion, and will play whichever move has the smallest >> winning value. This can result in silly moves (a capture that leads to >> a mate in eight moves instead of a non-capture that leads to mate in >> three moves). >>6. Since Chessmaster 9000 is a mass market product, the majority of its >> users are not aware of these other formats and how to get them. Also >> for the ease of development it is easier not to be dependent on >> technical support for data that was created using tools that were not >> developed by Ubi Soft. > > Hi Jason > Maybe you have asked the wrong question: "Why does Chessmaster 9000 > not support the egtb format that all other engines do?". See above. duh! :-) Particularly point 6. ... Johan
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