Blitz cube action

Timothy Chow

2024-03-13 23:46:31 UTC

XGID=aA-B-BDbB---bB-A-bAcc-b---:0:0:1:00:0:0:0:0:10

Score is X:0 O:0. Unlimited Game
+13-14-15-16-17-18------19-20-21-22-23-24-+
| X X O X | | O O O |
| X O | | O O O |
| | | O O |
| | | |
| | | |
| |BAR| |
| | O | |
| | | X |
| | | X |
| O X O | | X X X |
| O X O | | X X X X |
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 116 O: 142 X-O: 0-0
Cube: 1
X on roll, cube action

With 11 checkers in the zone and both back checkers escaped, X is
doing pretty well and I thought this was a good double, and I wasn't
even sure it was a take. However, XG says that it's not even a double.

Analyzed in Rollout
No double
Player Winning Chances: 61.14% (G:24.75% B:0.52%)
Opponent Winning Chances: 38.86% (G:11.59% B:0.52%)
Double/Take
Player Winning Chances: 61.31% (G:24.89% B:0.51%)
Opponent Winning Chances: 38.69% (G:11.79% B:0.58%)

Cubeful Equities:
No double: +0.500
Double/Take: +0.428 (-0.071)
Double/Pass: +1.000 (+0.500)

Best Cube action: No double / Take
Percentage of wrong pass needed to make the double decision right: 12.4%

Rollout:
1296 Games rolled with Variance Reduction.
Dice Seed: 271828
Moves: 3-ply, cube decisions: XG Roller
Confidence No Double: ± 0.012 (+0.487..+0.512)
Confidence Double: ± 0.018 (+0.411..+0.446)

eXtreme Gammon Version: 2.19.211.pre-release

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Tim Chow