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Rollout: The cube is coming! The cube is coming!

Posted By: Timothy Chow
Date: Thursday, 9 August 2012, at 12:37 a.m.

In Response To: The cube is coming! The cube is coming! (Timothy Chow)

Blue's take point is 22%, with no recube vig. Thus if we convert to a race, Blue's taking decision ATS is similar to money (perhaps Blue drops a little more quickly ATS). That is, after 16/9, Blue has a close take against an equal opponent.

What puzzles me here is the dramatic difference between the ATS rollout and the money rollout as far as the contact-preserving play goes. The rollout says that maintaining contact is a blunder for money (giving Blue a drop) while breaking contact is a whopper ATS. Of course Blue doesn't care about losing a gammon ATS after the cube is turned, but still. I'm wondering if the bot is handling the cube correctly?





White is eXtremeGammon

score: 5
pip: 123
7 point match
pip: 143
score: 1

Blue is Timothy Chow
XGID=------E-D---cE--Aebe------:0:0:1:43:1:5:0:7:10
Blue to play 43

1.Rollout113/9 8/5eq: -0.866
Player:
Opponent:
22.92% (G:0.77% B:0.04%)
77.08% (G:4.53% B:0.20%)
Conf: ± 0.011 (-0.877...-0.855)
Duration: 1 hour 24 minutes
2.Rollout113/10 13/9eq: -0.880 (-0.014)
Player:
Opponent:
22.72% (G:0.73% B:0.02%)
77.28% (G:4.98% B:0.22%)
Conf: ± 0.011 (-0.891...-0.869)
Duration: 1 hour 10 minutes
3.Rollout116/9eq: -0.977 (-0.111)
Player:
Opponent:
22.93% (G:0.02% B:0.00%)
77.07% (G:0.24% B:0.00%)
Conf: ± 0.005 (-0.982...-0.972)
Duration: 1 hour 45 minutes
1 1296 Games rolled with Variance Reduction.
Dice Seed: 2
Moves and cube decisions: 3 ply

eXtreme Gammon Version: 1.21, MET: Rockwell-Kazaross

For money:





White is Player 2

score: 0
pip: 123
Money session
Jacoby
pip: 143
score: 0

Blue is Player 1
XGID=------E-D---cE--Aebe------:0:0:1:43:0:0:1:0:10
Blue to play 43

1.Rollout116/9eq: -0.929
Player:
Opponent:
23.01% (G:0.01% B:0.00%)
76.99% (G:0.01% B:0.00%)
Conf: ± 0.010 (-0.939...-0.919)
Duration: 3 hours 26 minutes
2.Rollout113/10 13/9eq: -1.000 (-0.071)
Player:
Opponent:
22.64% (G:0.71% B:0.03%)
77.36% (G:4.18% B:0.10%)
Conf: ± 0.000 (-1.000...-1.000)
Duration: 3 hours 44 minutes
1 1296 Games rolled with Variance Reduction.
Dice Seed: 2
Moves and cube decisions: 3 ply

eXtreme Gammon Version: 1.21

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