BGonline.org Forums

why not cubing in both positions?

Posted By: Daniel Murphy
Date: Tuesday, 18 September 2012, at 1:49 a.m.

In Response To: why not cubing in both positions? (Robert Andersson)

Well, not all 6's lose market, and there are other rolls that do lose market. But 6's are surely good numbers, and they're better for Blue against the ace point anchor than against the deuce point anchor, since they lead to more wins and more gammon wins against the ace point anchor. Not all market losers are equal. Some lose their market by a bigger number than others. The number of market losers alone doesn't tell the whole story.

If you'll pick some two-roll sequences which you think are market losers in both positions, and compare them, I think it will become clear that Blue has more to gain from doubling now against the ace point anchor than against the deuce point anchor. For example:

White 111 Blue 113 Position ID: 7HYHACFsbgsjAA Match ID: cAkAAAAAAAAA Cube decision 2-ply cubeless equity +0.5894 0.7529 0.1272 0.0035 - 0.2471 0.0457 0.0015 Cubeful equities: 1. Double, pass +1.0000 2. Double, take +1.0133 +0.0133 3. No double +0.7288 -0.2712 Proper cube action: Double, pass	White 109 Blue 113 Position ID: bLsHEBBsbgdDAA Match ID: cAkAAAAAAAAA Cube decision 2-ply cubeless equity +0.5183 0.7308 0.1035 0.0024 - 0.2692 0.0485 0.0007 Cubeful equities: 1. Double, take +0.8547 2. Double, pass +1.0000 +0.1453 3. No double +0.7196 -0.1351 Proper cube action: Double, take
White 112 Blue 111 Position ID: 2nYHAChs3gZDAA Match ID: cAkAAAAAAAAA Cube decision 2-ply cubeless equity +0.6394 0.7711 0.1317 0.0035 - 0.2289 0.0375 0.0006 Cubeful equities: 1. Double, pass +1.0000 2. Double, take +1.1260 +0.1260 3. No double +0.9089 -0.0911 Proper cube action: Double, pass	White 110 Blue 111 Position ID: 2m4HABhs3gZDAA Match ID: cAkAAAAAAAAA Cube decision 2-ply cubeless equity +0.5752 0.7681 0.0674 0.0011 - 0.2319 0.0286 0.0008 Cubeful equities: 1. Double, take +0.9926 2. Double, pass +1.0000 +0.0074 3. No double +0.9222 -0.0704 Proper cube action: Double, take

Messages In This Thread

• why not cubing in both positions?
  Robert Andersson -- Tuesday, 18 September 2012, at 1:03 a.m.
  • why not cubing in both positions?
    Daniel Murphy -- Tuesday, 18 September 2012, at 1:49 a.m.
  • why not cubing in both positions?
    John O'Hagan -- Tuesday, 18 September 2012, at 4:00 a.m.