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BGonline.org Forums
Long XBG rollout
Posted By: misja In Response To: Another rollout (Petter Bengtsson)
Date: Wednesday, 15 July 2009, at 7:56 p.m.
I don't know how to export a XBG position into some readable HTML format, but anyway here's a long 3-ply XBG rollout. The 4000 rollouts took about the same amount of time as the 1000 gnubg rollouts ...
I'm not sure why the difference between the plays is so much bigger, maybe XBG plays more aggressively for the gammon but it could also be the different MET that XBG is using.
XGID=-b-BBCCbB---bB---b-bbAba--:2:-1:1:46:0:2:0:17:8
Score is X:0 O:2 17 pt(s) match. +13-14-15-16-17-18------19-20-21-22-23-24-+ | X O | | O O X O O | +---+ | X O | | O O O | | 4 | | | | | +---+ | | | | | | | | | |BAR| | | | | | | | | | | | | X X | | O X O | | X X X X O | | O X O | | X X X X O | +12-11-10--9--8--7-------6--5--4--3--2--1-+ Pipcount X: 110 O: 156 X-O: 0-2/17 Cube : 4, O own cube X to play 46
1. Rollout¹ 8/2 6/2 eq:+0.614
Player : 69.27% (G:30.28% B:4.14%)
Opponent: 30.73% (G:5.09% B:0.34%)
Confidence: ± 0.008 (+0.606
Duration: 56 minutes 23 seconds 2. Rollout¹ 21/11 eq:+0.550 (-0.063)
Player : 70.72% (G:22.15% B:2.49%)
Opponent: 29.28% (G:3.70% B:0.27%)
Confidence: ± 0.007 (+0.543
Duration: 1 hour 03 minutes 03 seconds 3. 2 ply 8/4 8/2 eq:+0.480 (-0.134)
Player : 64.97% (G:29.36% B:2.94%)
Opponent: 35.03% (G:8.38% B:0.34%)
4. 1 ply 21/15 8/4 eq:+0.438 (-0.176)
Player : 65.25% (G:24.72% B:2.41%)
Opponent: 34.75% (G:7.90% B:0.30%)
5. 1 ply 21/15 6/2 eq:+0.428 (-0.186)
Player : 65.69% (G:23.25% B:2.00%)
Opponent: 34.31% (G:8.29% B:0.28%)
¹ 3996 Games rolled with Variance Reduction. Moves and cube decisions: 3 ply
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