[Bug-gnubg] Confusing 2-away 2-away cube action

[Ian Shaw]

    GNU Backgammon  Position ID: 4HPwAFiYz8gFAg
                    Match ID   : MAFgAZAASAAA
    +-1--2--3--4--5--6-------7--8--9-10-11-12-+  O: GnuBg
    | X        O     O |   |    O        O  X |  9 points
    | X        O     O |   |    O           X |  On roll
    |                O |   |                X |  
    |                O |   |                X |  
    |                O |   |                  |  
    |                  |BAR|                  |^ 11 point match (Cube: 1)
    |                X |   |                  |  
    |                X |   |                  |  
    |                X |   |    X           O |  
    |                X |   |    X           O |  
    |             O  X | X |    X        O  O |  9 points
    +24-23-22-21-20-19------18-17-16-15-14-13-+  X: Ian

Cube analysis
2-ply cubeless MWC  62.70% (Money:  +0.634)
  0.705 0.254 0.021 - 0.295 0.049 0.001
1. Double, take         54.86%
2. Double, pass         70.00%  (+15.14%)
3. No double            54.24%  ( -0.62%)
Proper cube action: Double, take

I am using the W-H MET, so the take point is 30%. 2-ply evaluation has X's 
winning chances at 29.5%. There is no recube value, so this can't be a take.

(Incidentally, it would be good to show which MET is in use on the Market 
Window popup, and/or on the General Options popup. At present you can't tell 
which one is loaded except by typing "show met".)

--Ian