Re: [Bug-gnubg] rollout cube decision MONEY, cubeful equity *CORRECTION, SORRY*

[Joern Thyssen]

On Thu, Aug 21, 2003 at 03:01:25AM +0200, Robert-Jan Veldhuizen wrote
> 
>     GNU Backgammon  Position ID: YmcigDPYPYYDQA
>                     Match ID   : MAEAAAAAAAAA
> 
> Cube analysis
> Rollout cubeless equity  +0.6380
> Cubeful equities:
> 1. No double            +0.9343
> 2. Double, pass         +1.0000  ( +0.0657)
> 3. Double, take         +0.4934  ( -0.4409)
> Proper cube action: No double, take (87.0%)
> Rollout details:
> Centered 1-cube:
>    64.26%  34.95%   5.62% -  35.74%   5.16%   0.13% CL  +0.6380 CF  +0.9343
>  [  0.13%   0.09%   0.04% -   0.13%   0.04%   0.00% CL   0.0035 CF   0.0053]
> Player Zorba owns 2-cube:
>    63.55%  34.22%   5.46% -  36.45%   4.95%   0.12% CL  +1.2345 
> CF  +0.4934 --> +0.9868 ? RJV
>  [  0.28%   0.22%   0.08% -   0.28%   0.10%   0.01% CL   0.0161 
> CF   0.0090]    [0.0180] ? RJV
> Truncated cubeful rollout (depth 6) with var.redn.
> 432 games, Mersenne Twister dice gen. with seed 1181281792 and quasi-random 
> dice
> Play: 0-ply cubeful [expert]
> Cube: 0-ply cubeful [expert]

I can't reproduce the problem. I get:

Cube analysis
Rollout cubeless equity  +0.638

Cubeful equities:
1. Double, take         +0.983
2. Double, pass         +1.000  ( +0.017)
3. No double            +0.934  ( -0.049)
Proper cube action: Double, take
Rollout details:
Centered 1-cube:
  0.643 0.349 0.056 - 0.357 0.052 0.001 CL  +0.638 CF  +0.934
 [0.001 0.001 0.000 - 0.001 0.000 0.000 CL   0.003 CF   0.005]
Player jth owns 2-cube:
  0.634 0.343 0.055 - 0.366 0.050 0.001 CL  +1.232 CF  +0.983
 [0.002 0.001 0.000 - 0.002 0.001 0.000 CL   0.009 CF   0.010]
Truncated cubeful rollout (depth 6) with var.redn.
432 games, Mersenne Twister dice gen. with seed 1181281792 and
quasi-random dice
Play: 0-ply cubeful [expert]
Cube: 0-ply cubeful [expert]

Jørn

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