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doubling and volatility search for examples

Posted By: Bob Koca
Date: Sunday, 23 August 2026, at 3:44 p.m.

In Response To: doubling and volatility search for examples (negheonegu)

Very easy to find, but I suspect you did not want to have a position that is initially no double due to being too good to double.

Here is one. Initially it is a blunder to cube, and after each side dices 66 it is a big error to not double. Meanwhile equity has dropped by .1283.





White is Player 2

score: 0
pip: 27
Unlimited Game
Jacoby Beaver
pip: 31
score: 0

Blue is Player 1
XGID=--A--AD------------d---aa-:0:0:1:00:0:0:3:0:10
Blue on roll, cube action?

Analyzed in XG Roller++ No double Double/Take
Player Winning Chances: 57.545% (G:0.000% B:0.000%) 57.545% (G:0.000% B:0.000%)
Opponent Winning Chances: 42.455% (G:0.000% B:0.000%) 42.455% (G:0.000% B:0.000%)
Cubeless Equities +0.1509 +0.3018
Cubeful Equities
No double:+0.2394
Double/Take:+0.0972 (-0.1423)
Double/Pass:+1.0000 (+0.7606)
Best Cube action: No double / Take
Percentage of wrong pass needed to make the double decision right: 13.6%

eXtreme Gammon Version: 2.10

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