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Initial Double Mystery 2 -- SOLUTION

Posted By: Nack Ballard
Date: Wednesday, 15 May 2019, at 1:19 p.m.

In Response To: Initial Double Mystery 2 (Nack Ballard)





White is Player 2

score: 5
pip: 167
7 point match
pip: 167
score: 0

Blue is Player 1
XGID=-b----E-C---eE---c-e----B-:0:0:1:00:0:5:0:7:10

One checker play on each side, Initial Double
Match score: –7–2


At a score of 0–5 to 7 points (as shown), Blue makes a (non-doublet) opening play. White rolls and makes her best* play. Blue, back on roll, has a proper* initial double.

* The arbiter, in both instances, is XGR++ evaluation.

What is Blue's play, and what is White's play?

SOLUTION

Congratulations to Karol, Dmitriy, Stick, Brian Lonergan and Bob Koca, for solving "Initial Double Mystery 2"!

The diagram below encapsulates the solution of 31P-43S-C.

Nack





White is Player 2

score: 5
pip: 160
7 point match
pip: 163
score: 0

Blue is Player 1
XGID=-a--aBD-B---dE--ac-e----B-:0:0:1:00:0:5:0:7:10

31P-43S-C



Analyzed in XG Roller++ No double Double/Take
Player Winning Chances: 58.30% (G:18.54% B:0.89%) 57.93% (G:19.21% B:0.90%)
Opponent Winning Chances: 41.70% (G:10.90% B:0.57%) 42.07% (G:10.98% B:0.58%)
Cubeless Equities +0.183 +0.594
Cubeful Equities
No double:+0.593 (-0.001)
Double/Take:+0.594
Double/Pass:+1.000 (+0.406)
Best Cube action: Double / Take

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