Position 6

The score (after 1 game) is: North 2, South 0 (match to 7 points)

Move number 31: South on roll, cube decision?

+-24-23-22-21-20-19-+---+-18-17-16-15-14-13-+
|3O ' ' '2X3X|   |3X3X ' ' ' '|
|                   | 1X|                   |
|                 |   |                 |
|2O1O2X2O3O3O| 4 | '1O ' ' '1X|
+--1--2--3--4--5--6-+---+--7--8--9-10-11-12-+

Pip counts: North 155, South 125
Position ID: sLuDAEbL7gQAOA Match ID: UgngACAAAAAA

• South doubles

Alert: wrong double ( -0.075)! [doubtful]

Cube decision
Rollout cubeless equity -0.338(Money: -0.335)
Cubeful equities:
1.No double -0.062 
2.Double, pass +1.000 +1.062
3.Double, take -0.137 -0.075
Proper cube action:No redouble, take (6.6%)
Rollout details
 WinW gW bg LoseL gL bgCubelessCubeful
Player South owns 4-cube 33.3% 22.7% 1.8%- 66.7% 19.7% 5.0% -0.338 -0.062
Standard error 0.3% 0.8% 0.4%- 0.3% 0.6% 0.7% 0.009 0.009
Player North owns 8-cube 33.2% 24.6% 2.3%- 66.8% 22.5% 3.7% -0.137 -0.137
Standard error 0.3% 0.9% 0.4%- 0.3% 1.0% 0.6% 0.010 0.010
Full cubeful rollout with var.redn.
648 games, Mersenne Twister dice gen. with seed 1029211904 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: 0.075

1.2.15s
Output generated Wed Mar 21 02:12:06 2007 by GNU Backgammon 0.16-mingw (HTML Export version 1.173)

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