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65R-22N-66D-61

Posted By: Dmitriy Obukhov
Date: Monday, 13 August 2012, at 6:02 a.m.

In Response To: 65R-22N-52D-61 — Unlimited Games — 3-ply XG2 Rollout (Timothy Chow)

I don't know the answer to your question--there are too many xx-22N-xx-61 positions where p(13/7, 8/7) either beats P(11/5, 6/5) or very close.

Here is one such position where p is best by a wide margin:

65R-22N-66D-61

Note: it is not an accident that 1st roll is also 65 as in original position in this thread. Blue has more incentive to play p(13/7, 8/7) when White has one checker back.





White is Player 2

score: 0
pip: 132
Unlimited Game
Jacoby Beaver
pip: 159
score: 0

Blue is Player 1
XGID=-a--B-C-C--BbC---cde----B-:0:0:1:61:0:0:3:0:10
Blue to play 61

1.Rollout113/7 8/7eq: +0.0551
Player:
Opponent:		52.34% (G:13.28% B:0.50%)
47.66% (G:15.25% B:1.14%)		Conf.: ±0.0080 (+0.0470...+0.0631) - [100.0%]
Duration: 38 minutes 40 seconds
2.Rollout111/5 6/5eq: -0.0168 (-0.0719)
Player:
Opponent:		50.10% (G:12.70% B:0.46%)
49.90% (G:14.52% B:0.98%)		Conf.: ±0.0079 (-0.0247...-0.0089) - [0.0%]
Duration: 38 minutes 15 seconds
1 5184 Games rolled with Variance Reduction.
Dice Seed: 36
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.03

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