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64S-21 Gammon Save 2-ply GnuBg v1 Rollout

Posted By: Taper_Mike
Date: Wednesday, 19 June 2013, at 9:40 p.m.

In Response To: 64S-21 All Scores Call for Rollouts (Taper_Mike)

The score (after 0 games) is: GNUbg 0, You 1 (match to 2 points, Crawford game)

Move number 4: You to play 21

GNUbg157

2O ' ' ' '5X '3X1X ' '5O

1X ' ' ' '5O1X3O ' ' '4X
You167
Position ID: 4HPhQSDgc/ABMA Match ID: 8AlFAAAACAAE

# Ply Move Equity
1 R 24/22 8/7* -0.362138
 
0.4615580.1889840.022356-0.5384420.1426280.013957 -0.362138 -0.362138
0.0003380.0009220.000386-0.0003380.0003100.000276 0.000839 0.000839
 
  Full cubeful rollout with var.redn.  
  46656 games, Mersenne Twister dice gen. with seed 680647784 and quasi-random dice  
  Play: 2-ply cubeful prune [world class]  
  keep the first 2 0-ply moves and up to 6 more moves within equity 0.16  
  Skip pruning for 1-ply moves.  
  Cube: 2-ply cubeful prune [world class]  
  2 R 13/11 8/7* -0.372558 ( -0.010420)
 
0.4637610.1887140.021326-0.5362390.1500400.022210 -0.372558 -0.372558
0.0003410.0009060.000384-0.0003410.0003090.000357 0.000866 0.000866
 
  Full cubeful rollout with var.redn.  
  46656 games, Mersenne Twister dice gen. with seed 680647784 and quasi-random dice  
  Play: 2-ply cubeful prune [world class]  
  keep the first 2 0-ply moves and up to 6 more moves within equity 0.16  
  Skip pruning for 1-ply moves.  
  Cube: 2-ply cubeful prune [world class]  


Annotation
Rollout by Philippe Michel
2013-Jun-17
GNU Backgammon Version: 1.00.0
MET: Rockwell-Kazaross
64S-21-s-pm.sgf
s[X H10] '/46

Using the new GnuBg version 1.00, Philippe made strong 46k rollouts of 64S-21 at all four major scores.

Thanks, Philippe, for sending them along.

Mike

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