Post by MichaelGNU Backgammon Position ID: tmseABDYtiUAWA
Match ID : cAkAAAAAAAAE
+13-14-15-16-17-18------19-20-21-22-23-24-+ O: O
| O | | O O O O O X | 0 points
| O | | O O O O X |
| O | | O |
| O | | |
| | | |
v| |BAR| | (Cube: 1)
| | | |
| | | |
| | | |
| X X | | X X X | On roll
| X X X X | X | X X X O | 0 points
+12-11-10--9--8--7-------6--5--4--3--2--1-+ X: X
Pip counts : O 94, X 153
While it's usually easy for us to cube when opponent is on bar, it's quite the opposite for the opponent to do so when he's on bar.
Usually there must be something juicy in our board to do so.
Still notice it's only a +0.03 Double at this position and a sure Take.
You may also have a look at the Variant where I moved O's checker from 19 to 20.
Cube analysis
Rollout cubeless equity +0.4097
Cubeful equities:
1. Double, take +0.6313
2. Double, pass +1.0000 ( +0.3687)
3. No double +0.6004 ( -0.0309)
Proper cube action: Double, take
Rollout details:
Centered 1-cube:
69.84 15.54 0.54 - 30.16 13.11 1.67 CL +0.4097 CF +0.6004
[ 0.14 0.11 0.01 - 0.14 0.11 0.03 CL 0.0036 CF 0.0064]
Player O owns 2-cube:
70.23 15.22 0.55 - 29.77 12.92 1.68 CL +0.8325 CF +0.6313
[ 0.16 0.13 0.02 - 0.16 0.11 0.03 CL 0.0077 CF 0.0092]
Variant
**********
Cube analysis
Rollout cubeless equity +0.3428
Cubeful equities:
1. No double +0.5726
2. Double, pass +1.0000 ( +0.4274)
3. Double, take +0.5184 ( -0.0542)
Proper cube action: No double, take (11.3%)
Rollout details:
Centered 1-cube:
69.40 11.08 0.35 - 30.60 14.18 1.78 CL +0.3428 CF +0.5726
[ 0.16 0.11 0.01 - 0.16 0.13 0.03 CL 0.0042 CF 0.0083]
Player O owns 2-cube:
69.88 10.88 0.35 - 30.12 13.79 1.74 CL +0.7089 CF +0.5184
[ 0.19 0.11 0.01 - 0.19 0.14 0.03 CL 0.0094 CF 0.0110]