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BGonline.org Forums
5a7a recube action rollout
Posted By: Timothy Chow In Response To: 5a7a recube action (Timothy Chow)
Date: Friday, 11 February 2011, at 12:14 a.m.
This one confused me. At first glance I thought it was a clear money take, but then I tried to visualize how the game would play out and I saw that Blue had plenty of time to escape, so it looked like a big drop for money. ATS I wasn't sure whether White could take, so according to Woolsey it had to be a redouble.
The rollout, however, says that it's either ND/T or TG/T. Seems a little surprising to me; maybe XG is incorrectly taking drops next turn?
By the way, I'm wondering whether XG's reporting of the "Double Decision confidence" as 63.3% is the "right" number to report here. It's true that XG is uncertain whether it's ND or TG, but given that it's a take, it seems more logical to me for XG to say that it's 100.0% confident that Blue should not double.
White is Player 1
score: 0
pip: 1267 point match pip: 117
score: 2
Blue is Player 2XGID=baBBBBBA---A-A----bbbbbBb-:1:1:1:00:2:0:0:7:10 Blue on roll, cube action?
Analyzed in Rollout No Double Player Winning Chances: 78.02% (G: 40.41% B: 3.55%) Opponent Winning Chances: 21.98% (G: 4.23% B: 0.18%) Double/Take Player Winning Chances: 77.73% (G: 40.31% B: 7.09%) Opponent Winning Chances: 22.27% (G: 4.26% B: 0.22%) Cubeless Equities No Redouble: +0.980 Redouble: +1.331 Cubeful Equities No Redouble: +0.999 Redouble/Take: +0.957 (-0.042) Redouble/Drop: +1.000 (+0.001) Best Cube action: No Redouble / Take Rollout details 5184 Games rolled with Variance Reduction.
Dice Seed: 2
Moves and cube decisions: 3 plyConfidence No Redouble: ± 0.006 (+0.992...+1.005) Confidence Redouble: ± 0.011 (+0.945...+0.968) Double Decision confidence: 63.3% Take Decision confidence: 100.0% Duration: 4 hours 27 minutes eXtreme Gammon Version: 1.21, MET: Rockwell-Kazaross
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