Position 7

The score (after 0 games) is: North 0, South 0 (match to 7 points)

Move number 16: South on roll, cube decision?

+-24-23-22-21-20-19-+---+-18-17-16-15-14-13-+
|1O ' '1O '5X|   | '3X3X ' '2O|
|                   | 1X|                   |
|                 | 1 |                 |
| ' '2O '1O4O|   | '2O1O '1O3X|
+--1--2--3--4--5--6-+---+--7--8--9-10-11-12-+

Pip counts: North 145, South 142
Position ID: 4HOHA0BMz5IBIg Match ID: cAngAAAAAAAA

• South doubles

Alert: wrong double ( -0.061)! [doubtful]

Cube decision
Rollout cubeless equity +0.394(Money: +0.383)
Cubeful equities:
1.No double +0.568 
2.Double, pass +1.000 +0.432
3.Double, take +0.508 -0.061
Proper cube action:No double, take (12.3%)
Rollout details
 WinW gW bg LoseL gL bgCubelessCubeful
Centered 1-cube 60.9% 24.4% 0.4%- 39.1% 7.6% 0.7% +0.394 +0.568
Standard error 0.2% 0.3% 0.0%- 0.2% 0.2% 0.2% 0.005 0.012
Player North owns 2-cube 61.2% 24.8% 0.4%- 38.8% 7.3% 1.0% +0.835 +0.508
Standard error 0.2% 0.3% 0.1%- 0.2% 0.2% 0.2% 0.010 0.016
Full cubeful rollout with var.redn.
972 games, Mersenne Twister dice gen. with seed 1029619712 and quasi-random dice
Play: world class 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 8 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]

 

Wrong double by BGB
Equity lost: 0.061

2.1.7s

Output generated Wed Mar 21 02:18:35 2007 by GNU Backgammon 0.16-mingw (HTML Export version 1.173)

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