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Rollout

Posted By: neilkaz
Date: Wednesday, 13 August 2008, at 11:50 a.m.

In Response To: OLM Tues. Aug. 12th (Stick)

Why did I use 3-ply cube ? Well, this is a double or ND problem and a holding game where 3-ply eval gives us a more accurate eval of our chances than 2-ply, so I believe that 3-ply cube will give more accurate cube decisions later for the initial ND side of the rollout.

The score (after 0 games) is: gnubg 2, user 11 (match to 17 points)

Move number 3: user on roll, cube decision?


'2X2X2X3X2X ' ' ' ' ' '

'2X4O2O1X3O4O2O ' ' '1X

Pip counts: gnubg 124, user 82
Position ID: tt2AgBi8uTcAAA Match ID: cAkgAiAAWAAA

• user doubles

Cube decision
Rollout cubeless equity +0.5207(Money: +0.5336)
Cubeful equities:
1.Double, take +0.8860
2.Double, pass +1.0000 +0.1140
3.No double +0.8479 -0.0381
Proper cube action:Double, take
Rollout details
WinW gW bg LoseL gL bgCubelessCubeful
Centered 1-cube0.72500.10410.0035-0.27500.02360.0004 +0.5207 +0.8479
Standard error0.00130.00200.0005-0.00130.00080.0002 0.0035 0.0075
Player gnubg owns 2-cube0.72500.11620.0059-0.27500.02340.0003 +1.1126 +0.8860
Standard error0.00150.00210.0009-0.00150.00100.0012 0.0079 0.0108
Full cubeful rollout with var.redn.
884 games, Mersenne Twister dice gen. with seed 831002816 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: 3-ply cubeful prune [grandmaster]

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