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Gnu Rollout

Posted By: DC-Ohio
Date: Monday, 22 January 2007, at 9:16 p.m.

In Response To: Redouble? Take? (DC-Ohio)

I was blue and had this position in a SnG on GE. I decided to Redouble here with the thought that I'm pretty far ahead here, and my gammon chances are probably <10%, so I want to play this position for the match. I wasn't sure if I would have taken as white either, so I also decided it was a Woolsey rule double if anything. I was just about positive I wasn't too good here. I doubled, white took, I won a single game and the match. It does turn out that this is a double/take, by quite a big margin. Interestingly, when I analyzed this game in GNU at 2ply, it had my redouble marked as a blunder by -0.12, 4ply had it a NRD by -0.05, so I decided to roll it out.

The score (after 0 games) is: first_shirt 0, dcohio 0 (match to 3 points)

Move number 45: dcohio on roll, cube decision?

first_shirt	98
dcohio	80
Position ID: 3m4DAGC7twFAIA Match ID: UQlgAAAAAAAA

• dcohio doubles

Cube decision
Rollout cubeless equity		+0.443	(Money: +0.457)
Cubeful equities:
1.	Double, take	+0.844
2.	Double, pass	+1.000	+0.156
3.	No double	+0.604	-0.240
Proper cube action:		Redouble, take
Rollout details
Win W g W bg   Lose L g L bg Cubeless Cubeful Player dcohio owns 2-cube 0.686 0.102 0.004 - 0.314 0.020 0.001 +0.443 +0.604 Standard error 0.002 0.004 0.001 - 0.002 0.001 0.001 0.006 0.006 Player first_shirt owns 4-cube 0.716 0.251 0.007 - 0.284 0.033 0.001 +0.844 +0.844 Standard error 0.002 0.010 0.002 - 0.002 0.004 0.000 0.008 0.008
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 1017014618 and quasi-random dice
Play: 2-ply cubeful prune [world class]
keep the first 2 0-ply moves and up to 3 more moves within equity 0.1
keep the first 0 1-ply moves
Cube: 2-ply cubeful prune [world class]

 

Messages In This Thread

• Redouble? Take?
  DC-Ohio -- Monday, 22 January 2007, at 4:02 a.m.
  • Re: Redouble? Take?
    DC-ohio -- Monday, 22 January 2007, at 1:43 p.m.
  • Re: Redouble? Take?
    stremba -- Monday, 22 January 2007, at 3:30 p.m.
  • Gnu Rollout
    DC-Ohio -- Monday, 22 January 2007, at 9:16 p.m.