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BGonline.org Forums
53P-62S-54 No Jacoby, No Beavers 3-ply XG2 Rollout
Posted By: Taper_Mike In Response To: 53P-62S-54 (Michael Nielsen)
Date: Thursday, 23 January 2014, at 3:32 a.m.
White is Player 2
score: 0
pip: 159Unlimited Game
Jacoby Beaverpip: 159
score: 0
Blue is Player 1XGID=-a-B--DaB---dEa--c-e----B-:0:0:1:54:0:0:3:0:10 Blue to play 54
1. Rollout1 24/20 6/1* eq: +0.0723
Player:
Opponent:50.71% (G:17.42% B:0.67%)
49.29% (G:12.72% B:0.64%)Conf.: ±0.0035 (+0.0689...+0.0758) - [100.0%]
Duration: 4 hours 05 minutes2. Rollout1 24/20 13/8 eq: +0.0530 (-0.0193)
Player:
Opponent:50.70% (G:14.84% B:0.61%)
49.30% (G:11.56% B:0.46%)Conf.: ±0.0030 (+0.0500...+0.0560) - [0.0%]
Duration: 3 hours 45 minutes1 31104 Games rolled with Variance Reduction.
Dice Seed: 83943449
Moves: 3-ply, cube decisions: XG Roller
Rollout by Taper_Mike
2013-Aug-12
eXtreme Gammon Version: 2.10.199.2658
53P-62S-54-tm.xgp
[X S19] "<=31
[X S13 H75 R87] "&eeXtreme Gammon Version: 2.10
53P-62S-54 — Unlimited Games Bot Seed Equity Nacbracs Link GnuBg 0.xx 2-ply Trunc 723790475 +30.611 [S X3 R77 H80] /0.360t Taper_Mike XG 2.10 XGR++ Eval [XGR++ seed] +68.4 [X S13 H75 R87] "&e Taper_Mike XG 2.10 3-ply, Cubes: XGR 83943449 +72.3 [X S19] "<=31 Taper_Mike (above) GnuBg 1.02 2-ply Trunc 734982821 +69.959 n[X S11 H68 R87] '/0.360t Taper_Mike XG 2.10 3-ply, Cubes: XGR 5459943 +72 n[X S22] "<=1 Onur Alan Key: H = Hit [13/9, 6/1*], R = Run [24/15], S = Split = Z = Reverse split [24/20, 13/8], X = Hit and split [24/20, 6/1*]
Thanks for reminding me I had this, Michael!
The question still remains why hit-and-split is best for 53P-62S-54 while split-and-down tops the rollout of 53P-63S-53. As I am not clear on the theory here, I have to defer to my betters. I do like Maik Stieblers point regarding the duplications of 1s.
It is instructive to compare GnuBg v1 with v0. Philippe Michel, the creator of the neural nets used in v1, pointed out to me that v1 improves the absolute equity of the top play as well as fine tuning estimates of the differences in equity of the lesser plays. The data above are a case in point.
Mike
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