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Subject: Re: Fritz 5's opening tree loses moves!!!

Author: Serge Desmarais

Date: 16:48:40 08/27/98

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On August 27, 1998 at 19:35:01, Jeff Anderson wrote:

>I too have had this problem with books that I have created and are on the
>hard-disk.  It happened once and it has not happened since.  It was a pain to
>make the entire book again, it included about 50k games from the TWIC site.  It
>doesn't happen when you use the book on the cd-rom of course and it doesn't seem
>to be that big of a deal unless it happens more than on rare occasions.
>
>

   But leaving the book on the CD prevent it from learning! And that is exactly
how I feel : working to create something valuable and interesting and that COULD
become corrupted at anytime or not. For me, it happened twice in 6 days of use!
Also, the book is so big (one million positions taking about 100 Megs) compared
to those of other programs that only use a fraction of that space AND work fine!
So, maybe their idea for making an opening book was good but in practice it
doesn't work?

   Suggestion : Why not change the interface so the main book file would stay on
the CD, while the smaller files for learning and statistics (if they serve for
this) would be on the hard disk for less than one meg and be updated as the
program learns new information? And before each learning adjustment, it would
take these 2 files in a backup, in case anything happens? Calling these
Backup1.xxx, backup2.xxx and later you could delete the older backups when you
are sure everything is okay?

Serge Desmarais



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