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And now a serious query/problem/challenge

Posted By: Daniel Murphy
Date: Wednesday, 21 October 2009, at 6:12 p.m.

In Response To: And now a serious query/problem/challenge (Chuck Bower)

Chuck, you're looking for a noncontact double/must-take position with cubeless equity greater or equal to 0.600 (your "careful wording" excludes 000001 vs 000001 which has cubeless equity of 0.625 but is not a must-take).

Doesn't exist. I'll let Bob prove it ;-

Rewritten as I have rewritten it, I believe I raised the very same question in a thread now lost in unretrievable gammonline archives. I recall that at that time I was looking at http://www.bkgm.com/articles/CubeHandlingInRaces/ which includes a guideline for relating CPW to cube action based on Tom's database of positions:

"Your opponent should take if your CPW is less than .777." (Tom's note: "These are not necessarily the best universal numbers; they are just what worked best on the positions in the database.")

CPW of 77.7% corresponds to equity of 0.555. By trial and error I found one or more positions which were takes and had equity greater than -0.555, but they were still a long way from 0.600.

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