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BGonline.org Forums
Rollout & OTB
Posted By: David Presser In Response To: Interesting Cube Action from the bar (David Presser)
Date: Friday, 19 December 2014, at 5:59 p.m.
This came in a game against XG. I was White and on the receiving side of the cube. The cube is clear for the obvious reasons. The take seemed clear to me and I didn't hesitate thinking that as bad as the position is Blue still has no additional inside points and a blot in his board. XG++ evaluated it as close to a blunder which got me to roll my sleeves and try to figure why I am getting badly dinged for a cube position that looked straightforward to me.
After further looking and understanding the position, I can see the logic in passing, which some correctly pointed and I will add that the blot on the deuce is a big liability whether it is hit or not. In fact, unless Blue gets a hit and cover sequence he prefers to cover with most numbers rather than hit, even 42 should be played b/21, 6/4. And White has so much mess that even with a joker in the next roll he is still strongly dominated.
This was a good lesson that there are cases where cubing from the bar in a seemingly virgin-like position could be a pass.
White is Player 2
score: 0
pip: 168Unlimited Game
Jacoby Beaverpip: 156
score: 0
Blue is Player 1XGID=-c---ADBD---ba-aBb-e---aAA:0:0:1:00:0:0:3:0:10 Blue on roll, cube action?
Analyzed in Rollout No double Double/Take Player Winning Chances: 69.24% (G:28.81% B:3.53%) 68.83% (G:30.05% B:4.14%) Opponent Winning Chances: 30.76% (G:7.54% B:0.30%) 31.17% (G:7.61% B:0.34%) Cubeless Equities +0.630 +1.278 Cubeful Equities No double: +0.811 (-0.189) ±0.007 (+0.804..+0.818) Double/Take: +1.031 (+0.031) ±0.013 (+1.018..+1.045) Double/Pass: +1.000 Best Cube action: Double / Pass Rollout details 5184 Games rolled with Variance Reduction.
Dice Seed: 88627522
Moves: 3-ply, cube decisions: XG RollerDouble Decision confidence: 100.0% Take Decision confidence: 100.0% Duration: 43 minutes 36 seconds eXtreme Gammon Version: 2.10
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