RE: [Bug-gnubg] Beaver/redouble bug - erase analysis

[Albert Silver]

There's good news and there's bad news. The good news is that with the
latest 12/24 build, it no longer complains of my lack of doubling. The
bad news is that it now places 2 question marks on its own beaver as a
blunder. Now it seems to think (I'm guessing) in its analysis that it
didn't beaver, keeping the cube, but redoubled. That's the only
explanation I have for its own attribution of a blunder. 

BTW, I had to go through a bit of work to do this since I found no way
to erase the previous analysis. This is a good idea for a function - as
some people may wish to re-analyze matches with future improved versions
for comparison. I also tried to export it to .mat to re-import, but it
couldn't read its own export file so I ended up having to edit it by
hand. I'll send you both so you can see BTW.

                                                Albert

-----Original Message-----
From: address@hidden
[mailto:address@hidden On Behalf Of
Joern Thyssen
Sent: Wednesday, December 25, 2002 8:28 AM
To: Albert Silver
Cc: GNUBackgammon bug reporting
Subject: Re: [Bug-gnubg] Beaver/redouble bug

On Tue, Dec 24, 2002 at 09:14:22PM -0200, Albert Silver wrote

> I ran across a bug. I played a money session in which I doubled poorly
> at a moment with only 55% in my favor, and GNU beavered. The game went
> in my favor and I eventually won a few moves later. While going over
the
> game, I saw it flag one of my moves after the beaver (cube in GNU's
> possession) as a bad mistake.. Because I hadn't doubled. I think for
> some reason (this is build from Dec 19) it thinks that after
> beavering/redoubling, the cube is in my possession. Either that or
> something bizarre when analyzing.

I fixed bug Dec 21 that could cause this kind of problems. Can you try
with a newer build, or send me (off list) the SGF file, please?

Jørn



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