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Rollout and variant

Posted By: Timothy Chow
Date: Thursday, 17 September 2015, at 12:50 a.m.

In Response To: This problem reminded me... (Timothy Chow)

The actual position that arose OTB was the variant below, where making the 5pt duplicates 2's.

There's still a lot of variance left in these rollouts. I don't think that the ranking of the plays will change but the equity differences might.





White is Player 2

score: 0
pip: 150
Unlimited Game
pip: 139
score: 0

Blue is Player 1
XGID=---bB-D-Ca-BbC---bbdb-A---:0:0:1:61:0:0:0:0:10
Blue to play 61

1.Rollout113/7 8/7eq: +0.115
Player:
Opponent:
53.84% (G:11.86% B:0.58%)
46.16% (G:12.57% B:0.47%)
Conf.: ± 0.014 (+0.101...+0.129) - [100.0%]
Duration: 20 minutes 22 seconds
2.Rollout122/15eq: +0.070 (-0.045)
Player:
Opponent:
52.77% (G:9.56% B:0.40%)
47.23% (G:12.37% B:0.46%)
Conf.: ± 0.014 (+0.056...+0.084) - [0.0%]
Duration: 24 minutes 35 seconds
3.Rollout122/16 8/7eq: +0.066 (-0.049)
Player:
Opponent:
52.67% (G:9.79% B:0.39%)
47.33% (G:12.16% B:0.50%)
Conf.: ± 0.014 (+0.052...+0.080) - [0.0%]
Duration: 23 minutes 55 seconds
4.Rollout111/5 6/5eq: +0.043 (-0.073)
Player:
Opponent:
52.37% (G:11.03% B:0.47%)
47.63% (G:12.81% B:0.42%)
Conf.: ± 0.027 (+0.015...+0.070) - [0.0%]
Duration: 18 minutes 04 seconds
1 1296 Games rolled with Variance Reduction.
Dice Seed: 271828
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.19.208.pre-release


Variant:





White is Player 2

score: 0
pip: 150
Unlimited Game
pip: 138
score: 0

Blue is Player 1
XGID=---bB-D-Ca-BbC---bbdbA----:0:0:1:61:0:0:0:0:10
Blue to play 61

1.Rollout111/5 6/5eq: +0.159
Player:
Opponent:
54.44% (G:13.07% B:0.60%)
45.56% (G:12.11% B:0.42%)
Conf.: ± 0.013 (+0.146...+0.172) - [100.0%]
Duration: 19 minutes 26 seconds
2.Rollout113/7 8/7eq: +0.115 (-0.044)
Player:
Opponent:
53.22% (G:13.46% B:0.61%)
46.78% (G:13.43% B:0.51%)
Conf.: ± 0.014 (+0.101...+0.129) - [0.0%]
Duration: 20 minutes 18 seconds
1 1296 Games rolled with Variance Reduction.
Dice Seed: 271828
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.19.208.pre-release

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