Author: Peter Stein
Date: 15:34:53 11/24/00
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On November 20, 2000 at 22:08:11, Bob Durrett wrote: >On November 20, 2000 at 17:56:00, Peter Stein wrote: > >>Does anyone know of a reference for creating an opening book for these programs? >>Specifically something that describes how to adjust the weights of various moves >>so that the playing program will select moves based on user specified weights? >>Is this even possible? > >Did you say "creating" an opening book? As opposed to modifying an existing >book? > >If you wish to start from scratch, use Chessbase 8.0. You can create a book >from any collection of games, using CB8.0, but selecting the games to use might >take some doing. > >If you wish to modify an existing book, try chessbase's PowerBook2000. First >throw away all moves you do not want in your new book. Then add moves you want >if they are not already there. Adjust weightings as a final step. What are you using to adjust the weights? CB8 or the tree editor of a playing program like Fritz? I tried creating a book by importing from a database and then adjusting the weights. Unfortunately this didn't work correctly because after the import I was only able to adjust the weights of those moves which were given a frequency as a result of the import. I'm not sure if I set the import up incorrectly or whether this is a bug in the tree editor.
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