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Recube against a few checkers off?!

Posted By: Daniel Murphy
Date: Wednesday, 6 February 2008, at 1:49 p.m.

In Response To: Recube against a few checkers off?! (Matt Cohn-Geier)

but there is an argument that White should hold off until he reaches the last point of D/P, in which case Blue may err by taking.

That's an argument, but not the one that was made, which was:

... the goal here is for blue to get to the recube window, so that white can take.... lets see if white can somehow get into a taking position.

---

Of course, the problem is that White might also err by doubling too late.

Aye. In Matt's position, should White not double and wait until he gets to the following position, hoping that Blue takes?

The score (after 0 games) is: White 0, Blue 0

Move number 5: White on roll, cube decision?

White	25
Blue	39
Position ID: 2+4AAAAAACAAAA Match ID: MAEAAAAAAAAA

• White doubles

Cube decision
Rollout cubeless equity		+0.820
Cubeful equities:
1.	Double, pass	+1.000
2.	Double, take	+1.607	+0.607
3.	No double	+0.982	-0.018
Proper cube action:		Double, pass
Rollout details
Win W g W bg Lose L g L bg Cubeless Cubeful Centered 1-cube 0.910 0.000 0.000 - 0.090 0.000 0.000 +0.820 +0.982 Standard error 0.001 0.000 0.000 - 0.001 0.000 0.000 0.002 0.001 Player Blue owns 2-cube 0.912 0.000 0.000 - 0.088 0.000 0.000 +1.646 +1.607 Standard error 0.002 0.000 0.000 - 0.002 0.000 0.000 0.008 0.010
Full cubeful rollout with var.redn.
216 games, Mersenne Twister dice gen. with seed 1048833505 and quasi-random dice
Play: 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 8 more moves within equity 0.12
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]

Or wait yet one more roll and "see if white can somehow get into a taking position"?

The score (after 0 games) is: White 0, Blue 0

Move number 6: White on roll, cube decision?

White	25
Blue	20
Position ID: 2wYAAAAAAAIAAA Match ID: MAEAAAAAAAAA

• White doubles

Alert: double decision marked doubtful

Cube decision
Rollout cubeless equity		+0.362
Cubeful equities:
1.	Double, take	+0.547
2.	Double, pass	+1.000	+0.453
3.	No double	+0.499	-0.048
Proper cube action:		Double, take
Rollout details
Win W g W bg Lose L g L bg Cubeless Cubeful Centered 1-cube 0.681 0.000 0.000 - 0.319 0.000 0.000 +0.362 +0.499 Standard error 0.001 0.000 0.000 - 0.001 0.000 0.000 0.002 0.004 Player Blue owns 2-cube 0.678 0.000 0.000 - 0.322 0.000 0.000 +0.711 +0.547 Standard error 0.001 0.000 0.000 - 0.001 0.000 0.000 0.003 0.005
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 1048833505 and quasi-random dice
Play: 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 8 more moves within equity 0.12
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]

Messages In This Thread

• Recube against a few checkers off?!
  Klaus Evers -- Monday, 4 February 2008, at 8:45 p.m.
  • Recube against a few checkers off?!
    Daniel Murphy -- Monday, 4 February 2008, at 9:26 p.m.
    • Recube against a few checkers off?!
      Stick -- Tuesday, 5 February 2008, at 12:04 a.m.
  • Recube against a few checkers off?!
    Tom Keith -- Monday, 4 February 2008, at 10:40 p.m.
    • Recube against a few checkers off?!
      Bob Koca -- Tuesday, 5 February 2008, at 1:52 a.m.
      • Recube against a few checkers off?!
        Daniel Murphy -- Tuesday, 5 February 2008, at 9:22 a.m.
  • Recube against a few checkers off?!
    Keene -- Tuesday, 5 February 2008, at 3:12 p.m.
    • Recube against a few checkers off?!
      Bryce -- Tuesday, 5 February 2008, at 6:22 p.m.
      • Recube against a few checkers off?!
        Daniel Murphy -- Wednesday, 6 February 2008, at 2:06 a.m.
        • Recube against a few checkers off?!
          Matt Cohn-Geier -- Wednesday, 6 February 2008, at 3:53 a.m.
          • Recube against a few checkers off?!
            Daniel Murphy -- Wednesday, 6 February 2008, at 1:49 p.m.
    • Recube against a few checkers off?!
      Matt Cohn-Geier -- Tuesday, 5 February 2008, at 7:06 p.m.
  • Recube against a few checkers off?!
    Caryl Stephanson -- Tuesday, 5 February 2008, at 5:26 p.m.
  • Recube against a few checkers off?!
    neilkaz -- Wednesday, 6 February 2008, at 2:02 a.m.