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BGonline.org Forums
2a 2a Cube Action - Rollout
Posted By: Ian Shaw In Response To: 2a 2a Cube Action (Ian Shaw)
Date: Thursday, 31 December 2009, at 12:11 p.m.
I use 32% as the match equty for 2a1aC. Gnubg vacillated between Take on even plies and Pass on odd plies, but after a rollout it looks like my decision to drop was an error. 34.5% is right at the top of my estimation window.
Looking at the Jacobs-Trice tables, the difference for 100 Elo is 33.5 - 31 = 2.5% MWC at 2a1aC. Adding this difference to the baseline I use would make my pass marginally correct. Did I have this advantage? I've no idea, but maybe.
The score (after 0 games) is: Ian 0, Joe 0 (match to 2 points)
Move number 3: Joe on roll, cube decision?
Ian 161
Joe 147 Position ID: 4NsFgAfg28EBAw Match ID: cAlAAAAAAAAA
• Joe doubles
Cube decision Rollout cubeless MWC 57.86% (Money: +0.466) Cubeful equities: 1. Double, take 65.51% 2. Double, pass 68.15% 2.64% 3. No double 64.76% -0.75% Proper cube action: Double, take Rollout details
Win W g W bg Lose L g L bg Cubeless Cubeful Centered 1-cube 0.670 0.189 0.017 - 0.330 0.073 0.006 57.86% 64.76% Standard error 0.002 0.005 0.003 - 0.002 0.004 0.002 0.07% 0.15% Player Ian owns 2-cube 0.655 0.259 0.036 - 0.345 0.088 0.008 65.51% 65.51% Standard error 0.003 0.008 0.004 - 0.003 0.005 0.002 0.26% 0.26% Full cubeful rollout with var.redn. 1296 games, Mersenne Twister dice gen. with seed 840585011 and quasi-random dice Play: world class 2-ply cubeful prune [world class] keep the first 0 0-ply moves and up to 8 more moves within equity 0.16 Skip pruning for 1-ply moves. Cube: 1-ply cubeful prune
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