Jun 23

Prime (2)

By ace Backgammon, Where Gnu errs Add comments

From an online match 

The score (after 2 games) is: gnubg 1, ace 1 (match to 3 points)

Move number 6: gnubg to play 61


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

Pip counts: gnubg 84, ace 112
Position ID: bHsTEEBrtxkAIA Match ID: EQFnABAACAAA

# Ply Move Equity
  1 2 24/23 8/2 +0.469
  0.735 0.362 0.006 – 0.265 0.029 0.000  
  2 2 24/17 +0.442 ( -0.027)
  0.721 0.398 0.009 – 0.279 0.078 0.003  
  3 0 8/7 8/2 -0.166 ( -0.636)
  0.417 0.145 0.002 – 0.583 0.065 0.001  
  4 0 8/2 4/3 -0.175 ( -0.644)
  0.413 0.145 0.002 – 0.587 0.069 0.001  
  5 0 8/2 6/5 -0.372 ( -0.841)
  0.314 0.103 0.002 – 0.686 0.140 0.008  

 

# Ply Move Equity
  1 R 24/17 +0.494
 
0.747 0.391 0.002 - 0.253 0.101 0.001 +0.494 +0.494
0.003 0.022 0.001 - 0.003 0.011 0.006 0.005 0.005
 
  Full cubeful rollout with var.redn.  
  216 games, Mersenne Twister dice gen. with seed 1598776670 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]  
  2 R 24/23 8/2 +0.425 ( -0.069)
 
0.712 0.390 0.000 - 0.288 0.031 0.000 +0.425 +0.425
0.003 0.022 0.001 - 0.003 0.004 0.000 0.006 0.006
 
  Full cubeful rollout with var.redn.  
  216 games, Mersenne Twister dice gen. with seed 1598776670 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]  
  3 0 8/7 8/2 -0.166 ( -0.660)
  0.417 0.145 0.002 – 0.583 0.065 0.001  
  4 0 8/2 4/3 -0.175 ( -0.669)
  0.413 0.145 0.002 – 0.587 0.069 0.001  
  5 0 8/2 6/5 -0.372 ( -0.866)
  0.314 0.103 0.002 – 0.686 0.140 0.008  

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