Computer Chess Club Archives


Search

Terms

Messages

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

Author: Serge Desmarais

Date: 13:30:02 08/28/98

Go up one level in this thread


On August 28, 1998 at 10:52:53, Moritz Berger wrote:

>Dear Serge,
>
>may I suggest that you read the section in the Fritz 5 manual that describes the
>different book settings? Decreasing influence of learning, learning strength and
>selecting a different value for book width (i.e. probability that Fritz will
>follow the most popular moves only) are waiting for you to explore them ...
>
>I have never lost any information in any Fritz tree. You're the first person to
>report this strange phenomenon here on CCC. Still, you might be right that
>there's a bug somewhere (I cannot tell, since I am just an average Fritz user).
>But: More likely sounds some other problem with your machine. Did you try to
>verify your observations on a second PC?
>
>
>Moritz


   Jeff Andersson has had the same problem, though he did not report it in here
(he says it only occured once), while another person (in R.G.C.C.), whose name I
don't remember, had it even worse than for me: 2 days after installation he had
lost ALL White's first moves except for 1.e4. He reinstalled the game and after
a while the root of the tree was left with only 1.c4 as a starting move! It
seems that if you do not import new games or have it learn things, nothing wrong
happens to it. It must be a fragile decoration : as long as you don't touch
(use) it, it doesn't break...

   KK also reported that some other people has/have reported that bug to him and
all he knows is that the tree could NOT be fixed/restored once corrupted. He
thinks the patch 5.03 COULD correct that problem. He also told me that Chessbase
now has added an option under the Book menu, called "Restore Old Book", though
he wasn't clear about what it does exactly? Mabe restoring the book to the state
it was before getting corrupted, from some of backup?

   As for you suggestion, I only have ONE computer. And I would feel strange in
arriving at a friend's home and telling him I am coming to install a 200 meg's
chess program and to test it for a "known" bug and I do not know how long it
could take to appear?

   KK suggested, at first, that that was maybe because I am using Windows 3.11?
But the user that had it worse than my case in using Win95, so... As for Jeff
Andersson, I didn't ask. One could say that that could be because it is not on
the same drive as the game. But it let you access/copy it anywhere and just
writes down the path.

   I have been waiting quite a while to buy it and was reading the magazine
articles about it, and I waited for it to be tested quite extensively by the
SSDF and all, to be sure everything was/would be okay...


Serge Desmarais



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.