Jun 27

One on the Bar (1)

By ace Backgammon, Where Gnu errs Add comments

The score (after 0 games) is: gnubg 0, ace 0 (match to 17 points)

Move number 5: gnubg doubles to 2


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

Pip counts: gnubg 114, ace 132
Position ID: 7MyYA0Dm7YABAw Match ID: MBkgAgAAAAAA

• ace rejects

Alert: wrong pass ( -0.112)! [bad]

Cube decision
2-ply cubeless equity +0.568 (Money: +0.554)
  0.651 0.316 0.005 – 0.349 0.068 0.002
Cubeful equities:
1. Double, take +0.888  
2. Double, pass +1.000 +0.112
3. No double +0.767 -0.121
Proper cube action: Double, take


Cube decision
Rollout cubeless equity +0.638 (Money: +0.626)
Cubeful equities:
1. Double, pass +1.000  
2. Double, take +1.146 +0.146
3. No double +0.856 -0.144
Proper cube action: Double, pass
Rollout details
  Win W g W bg   Lose L g L bg Cubeless Cubeful
Centered 1-cube 0.679 0.323 0.005 - 0.321 0.058 0.002 +0.638 +0.856
Standard error 0.001 0.002 0.000 - 0.001 0.001 0.000 0.004 0.008
Player ace owns 2-cube 0.695 0.340 0.004 - 0.305 0.059 0.003 +1.398 +1.146
Standard error 0.002 0.003 0.001 - 0.002 0.001 0.000 0.009 0.012
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed -882845220 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]

 

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