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Re: [Bug-gnubg] Optional redouble, or is it automatic
From: |
Joern Thyssen |
Subject: |
Re: [Bug-gnubg] Optional redouble, or is it automatic |
Date: |
Mon, 9 Sep 2002 13:40:24 +0000 |
User-agent: |
Mutt/1.4i |
On Mon, Sep 09, 2002 at 02:20:20PM +0100, Ian Shaw wrote
>
> The correct position is this:
>
> +-1--2--3--4--5--6-------7--8--9-10-11-12-+ O: ian
> | X O O O O | | O O O | 2 points
> | X O O O | | O O |
> | X | | |
> | | | |
> | | | |
> | |BAR| |^ 5 point match
> | | | |
> | | | |
> | X | | |
> | O X X X X | X | | On roll
> | X O X X X X | X | O | 0 points
> +24-23-22-21-20-19------18-17-16-15-14-13-+ X: mlp (Cube: 4)
>
> Reconsidering my original reason for posting, Os takepoint is at 75% (W-H
> MET) because he can drop to Crawford 3-away. Nis is correct to argue that X
> might drop incorrectly in future so holding on to the cube is OK. I'm not
> sure that a bot sees this though since it assumes correct play by both
> sides.
> In that case the only drops you get are correct drops because O has
> lost his market, and therefore O wishes he had doubled earlier.
Yes, but gnubg does see any market losing sequences on 2-ply. Even
after X's joker 55 the game is still fifty-fifty.
I suggest you do a 4-ply cube evaluation, this should give you 2-ply
evaluations on X's next roll. A 2-ply eval only gives 0-ply evaluation of
possible market losers.
Jørn
--
Joern Thyssen, PhD
Vendsysselgade 3, 3., DK-9000 Aalborg, Denmark
+45 9813 2791 (private) / +45 2077 2689 (mobile) / +45 9633 7036 (work)