Author: Gian-Carlo Pascutto
Date: 00:09:19 10/05/02
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On October 04, 2002 at 20:40:55, john rice wrote: >1. I can't find an option to optimize the opening book. Maybe this is just a >Chessbase thing, but I would really like to know I'm using the best book options >available. The only book options I could find were: Variation (set at 50% >default) and Learning Strength (also set at 50% default). Common sense tells me >to set Variation to 0% and Learning Strength to 100% for maximum book >performance, but I have to wonder why these settings are not the default. Lex has already answered this, namely that if you use the engine book (and you should) this won't matter. If you start making your own books then you can download a utility from the lokasoft website called bookoptimize. The readme explains how it works. >3. The downloaded version was only 15MB in size. Therefore the opening book is >very small. Only a few megabytes, unlike Fritz7 which is over 200MB in size! How >can CT15's relatively tiny opening book be as good as Fritz7's huge book? Try this: make a PGN file, then make an openings book out of it in Fritz 7. Now do the same with Crafty. Both books contain exactly the same information, yet the Fritz7 book will be several magnitudes bigger. The Fritz book format is just horribly inefficient. -- GCP
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