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31P-54D-64 Unlimited Games 2-ply GnuBg v1 Rollout

Posted By: Taper_Mike
Date: Wednesday, 19 June 2013, at 10:52 p.m.

In Response To: 31P-54D-64 Unlimited Games 3-ply Rollout (Taper_Mike)

The score (after 0 games) is: GNUbg 0, You 0

Move number 4: You to play 64

GNUbg158

2O ' ' ' '5X '4X1X ' '5O

2X ' ' '2O4O '2O ' ' '3X
You163
Position ID: 4PPCATCwZ/ABMA Match ID: cAkTAAAAAAAA

# Ply Move Equity
1 R 24/18 13/9 +0.264122
 
0.5651130.1726840.009380-0.4348870.1352990.006150 +0.170843 +0.264122
0.0002170.0002770.000072-0.0002170.0002370.000053 0.000557 0.001575
 
  Full cubeful rollout with var.redn.  
  46656 games, Mersenne Twister dice gen. with seed 680710597 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 24/14 +0.260814 ( -0.003308)
 
0.5665130.1557020.008252-0.4334870.1248800.004690 +0.167410 +0.260814
0.0002130.0002710.000069-0.0002130.0002360.000047 0.000528 0.001419
 
  Full cubeful rollout with var.redn.  
  46656 games, Mersenne Twister dice gen. with seed 680710597 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-12
GNU Backgammon Version: 1.00.0
31P-54D-64-pm.sgf
[S R3] '/46

31P-54D-64 — Unlimited Games
Bot Seed Equity Nacbracs Link
GnuBg 0.xx 2-ply 1057141952 +267.6 [R S3] /10 BgOnline.org
GnuBg 1.00 2-ply 680710597 +264.122 [S R3] '/46 Philippe Michel (above)
XG 2.03 3-ply, Cubes: XGR 37591028 +269.0 [S R8 D61] "<=62*5 Taper_Mike
XG 2.10 XGR++ Eval [XGR++ seed] +261.2 [S R1 D71] "&e Taper_Mike

Key: D (Down) = 13/9 13/7, R (Run) = 24/14, S (Split) = 24/18 13/9

Explanation of nacbracs

Thanks, Philippe, for sending this strong rollout from GnuBg 1.00. By these rollouts, the new neural nets have cause GnuBg to swap the top two plays. Very interesting.

Mike

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