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Rollout

Posted By: Stick
Date: Tuesday, 9 September 2008, at 1:03 p.m.

In Response To: Even More Backgame Cubes (Stick)

ND/T, ND/T, ND(TG)/P, ND/T, TG, D/P, ND/? - that's how the scant voting on this broke down. In practice this must be a double and a surprisingly large score based take.

The score (after 0 games) is: user 1, gnubg 6 (match to 9 points)

user143


3X '2X3X2X ' ' ' ' ' ' '

2O2X3X3O4O2O2O2O ' ' ' '

gnubg76

Position ID: ZzcAgBvj3jYAAA Match ID: cAkgARAAMAAA

Cube analysis
Rollout cubeless equity +0.7766 (Money: +0.8266)

Cubeful equities:
1. No double +0.8510
2. Double, pass +1.0000 ( +0.1490)
3. Double, take +0.8318 ( -0.0192)
Proper cube action: No double, take (11.4%)

Rollout details:
Centered 1-cube:
0.7557 0.3176 0.0166 - 0.2443 0.0187 0.0004 CL +0.7766 CF +0.8510
[0.0008 0.0013 0.0009 - 0.0008 0.0004 0.0000 CL 0.0023 CF 0.0044]

Player user owns 2-cube:
0.7490 0.3500 0.0564 - 0.2510 0.0179 0.0017 CL +1.2696 CF +0.8318
[0.0010 0.0021 0.0021 - 0.0010 0.0004 0.0005 CL 0.0049 CF 0.0081]

Full cubeful rollout with var.redn.
5184 games, Mersenne Twister dice gen. with seed 831564616 and quasi-random dice
Play: 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 12 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]

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