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Prime v. Prime Cube - Rollout + Variant

Posted By: Taper_Mike
Date: Wednesday, 24 December 2014, at 10:35 a.m.

In Response To: Prime v. Prime Cube - Rollout + Variant (Stick)

It was good of those who picked up on it to realize how bad the made ace was for the taker. That variant is included below.

Astute analysis from Stick!

In order to make sure it was not the extra 2 pips White was given in Stick’s variant that made the difference, I constructed the following position. White is given 2 pips, but this time, it’s by moving his spares rather than the checkers on his 1pt. As in Stick’s variant, Blue gets no compensation. The result is still a pass.

Mike





White is Player 2

score: 0
pip: 109
Unlimited Game
Jacoby Beaver
pip: 117
score: 0

Blue is Player 1
XGID=--aBBBBBBA------bcbcbB--b-:0:0:1:00:0:0:3:0:10
Blue on roll, cube action?

Analyzed in Rollout No double Double/Take
  Player Winning Chances: 73.939% (G:13.866% B:0.335%) 74.797% (G:14.570% B:0.372%)
  Opponent Winning Chances: 26.061% (G:4.685% B:0.134%) 25.203% (G:4.560% B:0.125%)
  Cubeless Equities +0.5726 +1.1970
Cubeful Equities
No double:+0.7494 (-0.2506)±0.0075 (+0.7419..+0.7570)
Double/Take:+1.0121 (+0.0121)±0.0102 (+1.0019..+1.0224)
Double/Pass:+1.0000
 
Best Cube action: Double / Pass
Rollout details
2592 Games rolled with Variance Reduction.
Dice Seed: 57534169
Moves: 3-ply, cube decisions: XG Roller
 
Double Decision confidence:100.0%
Take Decision confidence:99.0%
Duration: 8 minutes 46 seconds

eXtreme Gammon Version: 2.10

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