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Rollout + variant

Posted By: Timothy Chow
Date: Tuesday, 21 May 2024, at 12:51 p.m.

In Response To: Someone once wrote a whole book about playing 31 in the opening (Timothy Chow)

White has a strong four-prime, so stepping up is a natural candidate play. So is making the 5pt, but making the 5pt leaves a direct shot.





White is Player 2

score: 0
pip: 156
Unlimited Game
pip: 137
score: 0

Blue is Player 1
XGID=-aBa--EBB---dB---bbcb--AA-:0:0:1:31:0:0:0:0:10
Blue to play 31

1.Rollout124/21 23/22eq: -0.370
Player:
Opponent:
40.46% (G:13.35% B:0.61%)
59.54% (G:18.33% B:0.79%)
Conf.: ± 0.013 (-0.383...-0.357) - [100.0%]
Duration: 5 minutes 58 seconds
2.Rollout18/5 6/5eq: -0.483 (-0.113)
Player:
Opponent:
37.28% (G:13.51% B:0.43%)
62.72% (G:18.23% B:0.99%)
Conf.: ± 0.015 (-0.498...-0.469) - [0.0%]
Duration: 5 minutes 39 seconds
3.Rollout123/22 6/3* eq: -0.492 (-0.122)
Player:
Opponent:
37.55% (G:13.53% B:0.53%)
62.45% (G:18.15% B:1.09%)
Conf.: ± 0.015 (-0.507...-0.477) - [0.0%]
Duration: 5 minutes 57 seconds
4.Rollout26/3* 3/2eq: -0.582 (-0.212)
Player:
Opponent:
35.08% (G:12.87% B:0.44%)
64.92% (G:18.86% B:0.98%)
Conf.: ± 0.015 (-0.597...-0.567) - [0.0%]
Duration: 6 minutes 06 seconds
 
1 1296 Games rolled with Variance Reduction.
Dice Seed: 271828
Moves: 3-ply, cube decisions: XG Roller

2 1296 Games rolled with Variance Reduction.
Dice Seed: 52672062
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.19.211.pre-release


Variant:





White is Player 2

score: 0
pip: 155
Unlimited Game
pip: 137
score: 0

Blue is Player 1
XGID=-aBa--EBB---dB---c-cc--AA-:0:0:1:31:0:0:0:0:10
Blue to play 31

1.Rollout18/5 6/5eq: -0.164
Player:
Opponent:
45.27% (G:17.17% B:0.62%)
54.73% (G:17.35% B:1.05%)
Conf.: ± 0.009 (-0.174...-0.155) - [59.6%]
Duration: 10 minutes 43 seconds
2.Rollout16/3* 3/2eq: -0.166 (-0.002)
Player:
Opponent:
45.08% (G:16.87% B:0.77%)
54.92% (G:17.06% B:0.86%)
Conf.: ± 0.012 (-0.178...-0.155) - [40.4%]
Duration: 11 minutes 15 seconds
3.Rollout123/22 6/3* eq: -0.185 (-0.021)
Player:
Opponent:
44.68% (G:16.89% B:0.78%)
55.32% (G:17.40% B:0.99%)
Conf.: ± 0.010 (-0.195...-0.175) - [0.0%]
Duration: 11 minutes 48 seconds
4.Rollout224/21 23/22eq: -0.290 (-0.126)
Player:
Opponent:
42.87% (G:15.02% B:0.83%)
57.13% (G:19.00% B:0.84%)
Conf.: ± 0.018 (-0.308...-0.273) - [0.0%]
Duration: 5 minutes 30 seconds
 
1 2592 Games rolled with Variance Reduction.
Dice Seed: 52672062
Moves: 3-ply, cube decisions: XG Roller

2 1296 Games rolled with Variance Reduction.
Dice Seed: 52672062
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.19.211.pre-release

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