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Who to pick on today

Posted By: Stick
Date: Tuesday, 21 October 2008, at 9:06 a.m.

In Response To: A backgammon problem (for a change) (Chuck Bower)

So many choices, so little time. I included (I think) all the plays that were mentioned in this thread. It's quite clear what the correct play is and for such a seemingly trivial play, a big chunk of equity at stake.

The score (after 0 games) is: gnubg 2, user 1 (match to 3 points, Crawford game)

gnubg106


' '1X2X4X2X3X '1X ' ' '

2O2O1O5O1X ' ' ' ' ' '1X

user29

Position ID: Wx8AAKC9nRAQAA Match ID: sIFpACAACAAA

# Ply Move Equity
• 1 R 9/6 7/5 -1.684
0.0000.0000.000-1.0000.3420.001 -1.684 -1.684
0.0000.0000.000-0.0000.0020.001 0.004 0.004
Full cubeful rollout with var.redn.
681 games, Mersenne Twister dice gen. with seed 836167777 and quasi-random dice
Play: 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 12 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
2 R 13/10 7/5 -1.713 ( -0.029)
0.0000.0000.000-1.0000.3560.001 -1.713 -1.713
0.0000.0000.000-0.0000.0020.001 0.004 0.004
Full cubeful rollout with var.redn.
681 games, Mersenne Twister dice gen. with seed 836167777 and quasi-random dice
Play: 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 12 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
3 R 13/11 9/6 -1.721 ( -0.037)
0.0000.0000.000-1.0000.3600.001 -1.721 -1.721
0.0000.0000.000-0.0000.0020.000 0.004 0.004
Full cubeful rollout with var.redn.
681 games, Mersenne Twister dice gen. with seed 836167777 and quasi-random dice
Play: 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 12 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
4 R 20/18 9/6 -1.802 ( -0.118)
0.0000.0000.000-1.0000.4010.000 -1.802 -1.802
0.0000.0000.000-0.0000.0020.000 0.004 0.004
Full cubeful rollout with var.redn.
680 games, Mersenne Twister dice gen. with seed 836167777 and quasi-random dice
Play: 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 12 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
5 R 20/18 13/10 -1.812 ( -0.128)
0.0000.0000.000-1.0000.4060.000 -1.812 -1.812
0.0000.0000.000-0.0000.0020.000 0.005 0.005
Full cubeful rollout with var.redn.
681 games, Mersenne Twister dice gen. with seed 836167777 and quasi-random dice
Play: 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 12 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]

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