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6 rolls vs. 6 rolls = double?

Posted By: Daniel Murphy
Date: Saturday, 26 July 2008, at 3:12 a.m.

In Response To: 6 rolls vs. 6 rolls = double? (David)

Reasoning: one roll later (5 rolls vs. 5 rolls) it is still a take, so better to wait. Well snowie doubles 6 rolls vs. 6 rolls. In fact, snowie double 7 rolls vs. 7 rolls! What am I not understading?

"One roll later" is not a take whenever you roll doublets and opponent doesn't. Petter B's program's answer is correct: 8 rolls vs. 8 rolls is an initial double. A Gnubg rollout gets slightly different numbers:

Money game. Blue on roll.

Gnubg WC	15
Me 17	15
Position ID: /38AAAD/fwAAAA Match ID: cAkAAAAAAAAA

Cube decision
Rollout cubeless equity		+0.3404
Cubeful equities:
1.	Double, take	+0.4606
2.	Double, pass	+1.0000	+0.5394
3.	No double	+0.4547	-0.0059
Proper cube action:		Double, take
Rollout details
Win W g W bg Lose L g L bg Cubeless Cubeful Centered 1-cube 0.6702 0.0000 0.0000 - 0.3298 0.0000 0.0000 +0.3404 +0.4547 Standard error 0.0000 0.0000 0.0000 - 0.0000 0.0000 0.0000 0.0000 0.0003 Player Gnubg WC owns 2-cube 0.6702 0.0000 0.0000 - 0.3298 0.0000 0.0000 +0.6809 +0.4606 Standard error 0.0000 0.0000 0.0000 - 0.0000 0.0000 0.0000 0.0000 0.0003
Full cubeful rollout with var.redn.
46656 games, Mersenne Twister dice gen. with seed 832623969 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

• 6 rolls vs. 6 rolls = double?
  David -- Friday, 25 July 2008, at 4:39 p.m.
  • 6 rolls vs. 6 rolls = double?
    Bill Riles -- Friday, 25 July 2008, at 5:09 p.m.
  • 6 rolls vs. 6 rolls = double?
    Keene -- Friday, 25 July 2008, at 5:09 p.m.
  • 6 rolls vs. 6 rolls = double?
    jdg -- Friday, 25 July 2008, at 5:15 p.m.
    • 6 rolls vs. 6 rolls = double?
      Petter Bengtsson -- Friday, 25 July 2008, at 6:44 p.m.
  • 6 rolls vs. 6 rolls = double?
    Stick -- Friday, 25 July 2008, at 6:02 p.m.
    • 6 rolls vs. 6 rolls = double?
      Gregg Cattanach -- Friday, 25 July 2008, at 8:18 p.m.
  • 6 rolls vs. 6 rolls = double?
    Philippe Michel -- Friday, 25 July 2008, at 6:43 p.m.
    • 6 rolls vs. 6 rolls = double?
      Chuck Bower -- Saturday, 26 July 2008, at 3:27 p.m.
  • 6 rolls vs. 6 rolls = double?
    Matt Cohn-Geier -- Friday, 25 July 2008, at 6:45 p.m.
    • 6 rolls vs. 6 rolls = double?
      Sam Pottle -- Monday, 4 August 2008, at 7:06 p.m.
      • 6 rolls vs. 6 rolls = double?
        Daniel Murphy -- Monday, 4 August 2008, at 7:47 p.m.
        • 6 rolls vs. 6 rolls = double?
          Jason Lee -- Tuesday, 5 August 2008, at 1:59 a.m.
          • 6 rolls vs. 6 rolls = double?
            Sam Pottle -- Tuesday, 5 August 2008, at 11:19 a.m.
  • Exact numbers
    Petter Bengtsson -- Friday, 25 July 2008, at 7:13 p.m.
  • Gnu confirms
    rew -- Friday, 25 July 2008, at 7:26 p.m.
  • 6 rolls vs. 6 rolls = double?
    Daniel Murphy -- Saturday, 26 July 2008, at 3:12 a.m.
  • 6 rolls vs. 6 rolls = double?
    neilkaz -- Sunday, 27 July 2008, at 12:15 a.m.