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BGonline.org Forums
Position of the Day 03-24-25 - Cube not at edge of prime - Rollout!
Posted By: Stick In Response To: Position of the Day 03-24-25 - Cube not at edge of prime (Stick)
Date: Tuesday, 22 April 2025, at 9:00 p.m.
I figured this position would catch nearly everyone out. Our spares on our lower points are an underappreciated problem. See variant below where I brought the worst one back to life.
White is Player 1
score: 0
pip: 85Unlimited Game
Jacoby Beaverpip: 157
score: 0
Blue is Player 2XGID=-bCCaCCB--a-a----bbbbb-A--:0:0:-1:00:0:0:3:0:10 Blue on roll, cube action?
Analyzed in Rollout No double Double/Take Player Winning Chances: 78.08% (G:13.52% B:0.39%) 79.54% (G:15.12% B:0.62%) Opponent Winning Chances: 21.92% (G:8.19% B:0.81%) 20.46% (G:7.58% B:0.75%) Cubeless Equities +0.611 +1.330 Cubeful Equities No double: +0.903 (-0.097) ±0.010 (+0.893..+0.912) Double/Take: +1.226 (+0.226) ±0.016 (+1.210..+1.241) Double/Pass: +1.000 Best Cube action: Double / Pass Rollout details 1296 Games rolled with Variance Reduction.
Moves: 3-ply, cube decisions: XG RollerDouble Decision confidence: 100.0% Take Decision confidence: 100.0% Duration: 30.3 seconds
Variant
White is Player 1
score: 0
pip: 89Unlimited Game
Jacoby Beaverpip: 157
score: 0
Blue is Player 2XGID=-bBCaCDB--a-a----bbbbb-A--:0:0:-1:00:0:0:3:0:10 Blue on roll, cube action?
Analyzed in Rollout No double Double/Take Player Winning Chances: 75.17% (G:12.21% B:0.37%) 76.22% (G:13.81% B:0.57%) Opponent Winning Chances: 24.83% (G:9.55% B:1.03%) 23.78% (G:9.15% B:0.97%) Cubeless Equities +0.523 +1.134 Cubeful Equities No double: +0.836 (-0.164) ±0.006 (+0.830..+0.842) Double/Take: +1.014 (+0.014) ±0.009 (+1.005..+1.022) Double/Pass: +1.000 Best Cube action: Double / Pass Rollout details 5184 Games rolled with Variance Reduction.
Moves: 3-ply, cube decisions: XG RollerDouble Decision confidence: 100.0% Take Decision confidence: 99.9% Duration: 2 minutes 26 seconds
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