Re: [Bug-gnubg] Strange analysis output

[Jim Segrave]

On Thu 05 Sep 2002 (10:12 +0200), address@hidden wrote:
> 
> 
> --On 04  Sep 2002  19:24 +0200 Jim Segrave <address@hidden> wrote:
> 
> >>From the Annotation window:
> >
> >    1. Cubeful 2-ply    5/4 5/1                      Eq.:  +1.033
> >       0.728 0.371 0.009 - 0.272 0.027 0.000
> >        2-ply cubeful 100% speed, 8 cand., 0.16 tol. [world class]
> >*   2. Cubeful 2-ply    8/7 8/4                      Eq.:  +0.950 (
> >     -0.083)        0.730 0.413 0.016 - 0.270 0.027 0.000
> >        2-ply cubeful 100% speed, 8 cand., 0.16 tol. [world class]
> >
> >The move I made 8/7 8/4 has a
> >higher probability of a win          0.730 vs 0.728
> >higher probability of a gammon       0.413 vs 0.371
> >higher probability of a backgammon   0.016 vs 0.009
> >and the
> >same probabilities of being gammoned or backgammoned. So why is the
> >equity lower? What am I missing or misunderstanding?
> 
> The easy answer:because you are doing cubeful evaluation. The numbers 
> listed are the cubeless winning chances.

Doh. I knew there was a simple explanation. Dank u wel.
 
> Understanding WHY the cubeful equity is so much different in a situation 
> loke this of course another matter.

Hmm - I'm trying to work that out for myself now. It may be some time.

> A quick rollout lists your move as superior, BTW ...
> 
> Question: Why can't I view statistics after doing a rollout from the hint 
> window?

I think that the rollout results window has grabbed events and won't
let you do much of anything until you close it

-- 
Jim Segrave           address@hidden