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Rollout

Posted By: Michael Klein
Date: Friday, 16 January 2009, at 1:17 p.m.

In Response To: Cube action? (Michael Klein)

The rollout confirms the RD/T. The decision is closer to a no RD than to being too good. Passing is quite a significant error, although the take will lose a gammon (and the match) roughly 10% of the time.

Match to 7, Tied at 0-0
Blue on roll. Cube action?

White	81
Blue	122
Position Id: d7sBAAy42wwDQA Match Id: UQngAAAAAAAA

Cube decision
Rollout cubeless equity		+0.461	(Money: +0.460)
Cubeful equities:
1.	Double, take	+0.878
2.	Double, pass	+1.000	+0.122
3.	No double	+0.822	-0.056
Proper cube action:		Redouble, take
Rollout details
Win W g W bg Lose L g L bg Cubeless Cubeful Player White owns 2-cube 0.689 0.146 0.005 - 0.311 0.069 0.001 +0.461 +0.822 Standard error 0.001 0.002 0.001 - 0.001 0.001 0.001 0.003 0.007 Player Blue owns 4-cube 0.710 0.152 0.017 - 0.290 0.083 0.002 +1.048 +0.878 Standard error 0.001 0.003 0.003 - 0.001 0.003 0.002 0.007 0.009
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 810718109 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: 2-ply cubeful prune [world class]

Messages In This Thread

• Cube action?
  Michael Klein -- Thursday, 15 January 2009, at 4:17 p.m.
  • Cube action?
    Chuck Bower -- Thursday, 15 January 2009, at 5:26 p.m.
  • Cube action?
    neilkaz -- Thursday, 15 January 2009, at 6:16 p.m.
    • Agreed
      tem_sat -- Thursday, 15 January 2009, at 9:15 p.m.
  • Cube action?
    Martin -- Thursday, 15 January 2009, at 7:24 p.m.
  • Cube action?
    John O'Hagan -- Thursday, 15 January 2009, at 7:44 p.m.
  • Cube action?
    pontiac -- Thursday, 15 January 2009, at 8:10 p.m.
  • Cube action?
    Rich Munitz -- Friday, 16 January 2009, at 12:07 a.m.
  • Rollout
    Michael Klein -- Friday, 16 January 2009, at 1:17 p.m.
    • Rollout
      John O'Hagan -- Friday, 16 January 2009, at 2:31 p.m.