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Re: [Bug-gnubg] idea for faster rollout cube decision

From: Joern Thyssen
Subject: Re: [Bug-gnubg] idea for faster rollout cube decision
Date: Sun, 3 Aug 2003 16:30:53 +0000
User-agent: Mutt/1.4.1i

On Sun, Aug 03, 2003 at 03:12:24PM +0200, Jim Segrave wrote
> On Sun 03 Aug 2003 (01:39 +0200), Robert-Jan Veldhuizen wrote:
> > Quite often I find myself rolling out a cube decision where I'm only 
> > interested in one of the two rows of results. Sometimes the double is clear 
> > and it's just the take decision I'm interested in (bottom row). At other 
> > times it's a trivial pass but might be too good and I'm only interested in 
> > the No Double equity (top row).
> > 
> > It would be nice to have a feature to just do either of the two rollouts 
> > peformed by a rollout cube decision. In the Annotation window, I could 
> > imagine a button for "rollout no double only" for the doubler's turn, and 
> > if there's an actual double, a button for "rollout double/take only" for 
> > the taker/passer's turn.
> > 
> > Especially for close too good decisions (but huge passes) this would gain a 
> > lot of time (more than a factor 2 even) as they'll often be passed later 
> > anyway, sometimes right on the next turn. Right now though the rollout 
> > would spend a lot of time with the cube being taken and the game being 
> > played until the end or until the very unlikely recube/drop.
> That sounds reasonable to me. Previously that wasn't an option, as
> cube decisions were done with ND/DT at the lowest level - there was no
> way to say just roll out this half of the decision.

The problem is that we need the DT equity for the output...


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