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TG to redouble but not TG for an initial double?

Posted By: Joe Russell
Date: Sunday, 11 October 2009, at 10:06 p.m.

In Response To: TG to redouble but not TG for an initial double? (Timothy Chow)

Many positions where potential gammons are involved and the equity of not doubling from the center falls just shy of the equity of doubling would be too-good to double if you owned the cube. If you change this to a money game it would be most positions rather than many.

Here is an example:

The score (after 0 games) is: gnubg 0, User 0 (match to 15 points)

Move number 15: User on roll, cube decision?

gnubg	122
User	107
Position ID: 2O6CgwBsd4IHAA Match ID: cAngAQAAAAAA

• User doubles

Cube decision
3-ply cubeless equity		+0.831	(Money: +0.825)
	0.804 0.236 0.002 - 0.196 0.020 0.000
Cubeful equities:
1.	Double, pass	+1.000
2.	Double, take	+1.548	+0.548
3.	No double	+0.998	-0.002
Proper cube action:		Double, pass

And if you owned the cube:

The score (after 0 games) is: gnubg 0, User 0 (match to 15 points)

Move number 17: User on roll, cube decision?

gnubg	122
User	107
Position ID: 2O6CgwBsd4IHAA Match ID: UQngAQAAAAAA

• User doubles

Alert: wrong double ( -0.016)!

Cube decision
3-ply cubeless equity		+0.836	(Money: +0.825)
	0.804 0.236 0.002 - 0.196 0.020 0.000
Cubeful equities:
1.	No double	+1.016
2.	Double, take	+1.539	+0.523
3.	Double, pass	+1.000	-0.016
Proper cube action:		Too good to redouble, pass (2.9%)

Messages In This Thread

• TG to redouble but not TG for an initial double?
  Timothy Chow -- Sunday, 11 October 2009, at 6:34 p.m.
  • TG to redouble but not TG for an initial double?
    Joe Russell -- Sunday, 11 October 2009, at 10:06 p.m.
  • TG to redouble but not TG for an initial double?
    neilkaz -- Sunday, 11 October 2009, at 10:11 p.m.