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Re: [Bug-gnubg] miscellaneous bugs and suggestions
From: |
Joern Thyssen |
Subject: |
Re: [Bug-gnubg] miscellaneous bugs and suggestions |
Date: |
Sat, 7 Sep 2002 10:48:02 +0000 |
User-agent: |
Mutt/1.4i |
On Fri, Sep 06, 2002 at 02:20:14AM +0200, Robert-Jan Veldhuizen wrote
> At 20:55 9/5/2002 +0000, you wrote:
>
> >On Thu, Sep 05, 2002 at 04:18:20AM +0200, Robert-Jan Veldhuizen wrote
> >
> >> - how about extending "rollout cube decision" so that one can also just
> >> check the double decision (only upper rollout)
> >
> >The double decision requires both rollouts as well as the equity for
> >"double, pass".
>
> You're right that often you need both values (and double,pass is just +1
> EMG of course), but not always:
>
> If it's a take, yes. But there's also doubling decisions where the pass
> might be trivial (double/take equity >> 1), and the only question is
> whether it's too good (no double eq > 1) or double/pass; then you're only
> interested in the upper row of a cube decision rollout.
>
> A bit similar to the scenario where the double is clear and you're only
> interested in the take decision, and you only need the bottom row a cube
> decision rollout.
>
> Seems like an interesting option to me, since it can speed up such a
> rollout by quite a lot I think. Especially when a position is close to "too
> good", rolling out the sceanrio with opponent owning the cube could mean a
> long game (recubes/passes seem unlikely here), and the result is often not
> so interesting since it's clear that it's a big drop.
It's quite simple to add these rollouts, so I'll do so.
Jørn
PS! That's all from me today. I'm leaving for the Jean Michel Jarre
concert now :-) <URL:http://sites.tv2.dk/aerouk/>
--
Joern Thyssen, PhD
Vendsysselgade 3, 3., DK-9000 Aalborg, Denmark
+45 9813 2791 (private) / +45 2077 2689 (mobile) / +45 9633 7036 (work)
RE: [Bug-gnubg] miscellaneous bugs and suggestions, Ian Shaw, 2002/09/10