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BGonline.org Forums
41$-32S-31P-31 No Jacoby, No Beavers 3-ply XG2 Rollout
Posted By: Taper_Mike In Response To: 54S-21H-61U-21P-21U-51N-31 and simpler variants (Nack Ballard)
Date: Friday, 30 May 2014, at 4:37 a.m.
White is Player 2
score: 0
pip: 158Unlimited Game pip: 162
score: 0
Blue is Player 1XGID=-b----E-C--AdD---c-dbA--A-:0:0:1:31:0:0:0:0:10 Blue to play 31
1. Rollout1 24/21 11/10 eq: -0.0960
Player:
Opponent:47.02% (G:10.37% B:0.32%)
52.98% (G:9.97% B:0.38%)Conf.: ±0.0019 (-0.0979...-0.0941) - [52.4%]
Duration: 7 hours 27 minutes2. Rollout1 8/5 6/5 eq: -0.0961 (-0.0001)
Player:
Opponent:48.05% (G:14.00% B:0.69%)
51.95% (G:16.79% B:0.84%)Conf.: ±0.0022 (-0.0983...-0.0939) - [47.6%]
Duration: 6 hours 56 minutes1 62208 Games rolled with Variance Reduction.
Dice Seed: 55907283
Moves: 3-ply, cube decisions: XG Roller
Rollout by Taper_Mike
2014-May-28
eXtreme Gammon Version: 2.10.199.2658
41$-32S-31P-31-n-tm.xgp
n[B=P] "<=62
n[B P10] "&eeXtreme Gammon Version: 2.10
41$-32S-31P-31 — Unlimited Games Bot Seed Equity Nacbracs Link XG 2.10 XGR++ Eval [XGR++ seed] 101.3 [B P5] "&e Taper_Mike GnuBg 1.02 2-ply Trunc 710424267 94.142 n[B P17] '/0.360t Taper_Mike XG 2.10 3-ply, Cubes: XGR 55907283 96.0 n[B=P] "<=62 Taper_Mike (above) XG 2.10 XGR++ Eval [XGR++ seed] 97.9 n[B P10] "&e Taper_Mike Key: B = Both [24/21, 11/10], P = Point [8/5, 6/5]
Nactation Tutorial Explanation of nacbracs Nacbracs for cube actions
Your choice. After 62k, its a dead heat.
In my no-Jacoby XGR++ eval, note that P loses up a tiny bit of equity compared to the Jacoby eval. Presumably, this effect would also be present if a full rollout were made using Jacoby.
Nack describes this position using the alias 41$-32S-31A-31. That works because there are two equivalent Nactations for the third-roll play:
A (Attack) = P (Point) = 9/5
Mike
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