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Rollout

Posted By: Stick
Date: Thursday, 11 September 2008, at 7:28 a.m.

In Response To: Cube Decision AtO (Stick)

First of all, OtB, I absolutely knew this was a take and a decent sized one at that. I suspected it was a technical blunder to pass but I didn't pontificate on the size of the blunder. I grinded over this decision knowing the person in question would hit, hit, hit away - even when hitting may be technically incorrect at a point, he might do it anyway and honestly, him gammoning me on a 2 cube might be his best route to victory.

I had a similar position a long time ago against Paul Weaver where I didn't know if it was a T/P and ended up passing also. I wouldn't make such a decision against an equal player if I knew...I didn't know playing Weaver, but the position, someone akin to this one, has stuck in my head ever since so I knew it was a take.

I lose no sleep over something like this and would pass it again against the same opponent. Again, I don't know how much weaker than myself he was but he noticeably weaker. I feel my MWC are better in passing though I could be wrong.

The score (after 0 games) is: user 5, gnubg 7 (match to 11 points)

user145


 '2X1O2X2X1O '3X ' ' '2O

 '1X1X ' '5O3O2O '1X '3X

gnubg159

Position ID: 4LvBQERm4+AEFA Match ID: MAFgAVAAOAAA

Cube analysis
Rollout cubeless equity +0.4481 (Money: +0.4219)

Cubeful equities:
1. Double, take +0.7585
2. Double, pass +1.0000 ( +0.2415)
3. No double +0.6189 ( -0.1396)

Proper cube action: Double, take

Rollout details:
Centered 1-cube:
0.6197 0.2752 0.0151 - 0.3803 0.0980 0.0099 CL +0.4481 CF +0.6189
[0.0024 0.0026 0.0010 - 0.0024 0.0032 0.0027 CL 0.0069 CF 0.0159]

Player gnubg owns 2-cube:
0.6230 0.2755 0.0132 - 0.3770 0.1066 0.0213 CL +0.9520 CF +0.7585
[0.0029 0.0033 0.0012 - 0.0029 0.0039 0.0049 CL 0.0190 CF 0.0219]

Full cubeful rollout with var.redn.
589 games, Mersenne Twister dice gen. with seed 831694156 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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