Re: [Bug-gnubg] Tutor Cube Warning bug and Export Analysis Bug

[Ned Cross]

I don't know if I misrepresented the problem when I referred to "redoubling
to 4".  I think in some areas of the GNUBG program the term "redouble" is
synonymous with the term "beaver" ( at least that's what Help/Commands
says).

I don't know if it makes a difference, but I was actually not beavering
here. The cube had been on 2 for some time and I was doubling to 4.

Also I have seen GNUBG warn of bad cubes to 4 when not good enough to
double, so the cube tutor seems to work to some extent.

Ned

----- Original Message -----
From: "Jim Segrave" <address@hidden>
To: "Ned Cross" <address@hidden>
Cc: "GNUBackgammon bug reporting" <address@hidden>
Sent: Wednesday, October 02, 2002 2:48 AM
Subject: Re: [Bug-gnubg] Tutor Cube Warning bug and Export Analysis Bug


> On Tue 01 Oct 2002 (12:24 -0700), Ned Cross wrote:
> > OS: Win ME
> > GNUBG: Version 0.12 Build 020930
> > Bug:  1) Tutor mode fails to give warning flag for re-cube when TG
> >
> >
> > 1) I was playing out a midgame position from a previous match, using
tutor mode with the following settings:
> >     Cube decisions - on
> >     Checker play - on
> >     Tutor Decisions - Same as Evaluation
> >     Evaluation settings - (Checker Play and Cube settings Identical)
2-ply, 6 candidates, tol. 0.110, Reduced 2-ply, cubeful checker eval.
> >     Warning Level - Doubtful
> >
> > **BUG** Redoubling to 4 in the posted position provoked no warning flag
from the tutor.  GNU passed, and post-game analysis flagged the recube as
"bad" - an error of -0.130.
>
> Hmm - someone has commented this code out. From play.c:
>
> #if 0
>
>     removed until gnubg/GoodDouble handles beavers and raccoons
>     correctly.
>
>     if ( fTutor && fTutorCube && !GiveAdvice( GoodDouble( TRUE, pmr )
>     ))
>       return;
> #endif
>
> Joern took this out in rev 1.145 (Aug 2nd). He may know if the problem
> has been fixed and this simply has been overlooked or if it's still there.
>
>
> --
> Jim Segrave           address@hidden
>
>
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