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DQ: Why or why not break the anchor? Rollout of double

Posted By: leobueno
Date: Tuesday, 10 February 2015, at 7:41 p.m.

In Response To: DQ: Why or why not break the anchor? *** Rollout *** (Timothy Chow)

The score (after 0 games) is: gnubg 0, leo 0 (match to 5 points)

Move number 6: gnubg to play 54

gnubg	109
leo	89
Position ID: 7WYOKAAzdwMCAw Match ID: AYGyAAAAAAAE

• gnubg moves 20/16 14/9*

Cube decision
Rollout cubeless equity		+0.459	(Money: +0.419)
Cubeful equities:
1.	No double	+0.605
2.	Double, pass	+1.000	+0.395
3.	Double, take	+0.542	-0.062
Proper cube action:		No redouble, take (13.6%)
Rollout details
Win W g W bg Lose L g L bg Cubeless Cubeful Player gnubg owns 2-cube 0.619 0.248 0.009 - 0.381 0.072 0.002 +0.459 +0.605 Standard error 0.001 0.002 0.001 - 0.001 0.002 0.000 0.003 0.004 Player leo owns 4-cube 0.624 0.239 0.028 - 0.376 0.088 0.004 +0.789 +0.542 Standard error 0.001 0.002 0.003 - 0.001 0.004 0.001 0.005 0.006
Full cubeful rollout with var.redn.
1295 games, Mersenne Twister dice gen. with seed 771096560 and quasi-random dice
Stop when best play is enough JSDs ahead: limit 3.5 (min. 360 games)
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]

#		Ply	Move	Equity
•	1	3	20/16 14/9*	+0.839
			0.701 0.342 0.010 - 0.299 0.097 0.004
			3-ply cubeful prune [grandmaster]
	2	3	20/15 14/10*	+0.749 ( -0.091)
			0.676 0.329 0.009 - 0.324 0.111 0.005
			3-ply cubeful prune [grandmaster]
	3	2	14/9*/5	+0.715 ( -0.124)
			0.657 0.222 0.005 - 0.343 0.055 0.001
			2-ply cubeful prune [world class]
	4	2	14/10*/5	+0.707 ( -0.132)
			0.656 0.212 0.004 - 0.344 0.053 0.001
			2-ply cubeful prune [world class]
	5	2	14/9* 5/1	+0.605 ( -0.234)
			0.609 0.169 0.003 - 0.391 0.069 0.002
			2-ply cubeful prune [world class]
	6	2	14/9* 7/3	+0.604 ( -0.235)
			0.621 0.224 0.004 - 0.379 0.078 0.003
			2-ply cubeful prune [world class]
	7	2	14/10* 6/1	+0.582 ( -0.257)
			0.617 0.193 0.004 - 0.383 0.073 0.002
			2-ply cubeful prune [world class]
	8	0	14/9* 6/2	+0.477 ( -0.362)
			0.580 0.216 0.005 - 0.420 0.112 0.003
			0-ply cubeful prune [expert]

Messages In This Thread

• DQ: Why or why not break the anchor?
  leobueno -- Sunday, 8 February 2015, at 6:11 p.m.
  • DQ: Why or why not break the anchor?
    Timothy Chow -- Sunday, 8 February 2015, at 6:50 p.m.
    • DQ: Why or why not break the anchor?
      leobueno -- Sunday, 8 February 2015, at 7:31 p.m.
  • DQ: Why or why not break the anchor? *** Rollout ***
    leobueno -- Monday, 9 February 2015, at 8:04 p.m.
    • DQ: Why or why not break the anchor? *** Rollout ***
      Timothy Chow -- Tuesday, 10 February 2015, at 12:44 a.m.
      • DQ: Why or why not break the anchor? Rollout of double
        leobueno -- Tuesday, 10 February 2015, at 7:41 p.m.
        • DQ: Why or why not break the anchor? Rollout of double
          Timothy Chow -- Saturday, 14 February 2015, at 6:49 p.m.
  • DQ: Why or why not break the anchor?
    Kevin Finch -- Saturday, 14 February 2015, at 3:24 a.m.
    • DQ: Why or why not break the anchor?
      Timothy Chow -- Saturday, 14 February 2015, at 7:10 p.m.