
              
 
              
 | | White is Player 2
score: 5 pip: 6 | | 7 point match | pip: 29 score: 1
Blue is Player 1 | |
| XGID=-CB--BB-----------------f-:1:1:1:61:1:5:0:7:10 |
| Blue to play 61 |
| 1. | XG Roller+ | 6/0ff 1/0ff | eq: -0.981 |
| Player: Opponent: | 0.64% (G:0.00% B:0.00%) 99.36% (G:0.00% B:0.00%) | |
|
| 2. | XG Roller+ | 6/5 6/0ff | eq: -0.984 (-0.003) |
| Player: Opponent: | 0.54% (G:0.00% B:0.00%) 99.46% (G:0.00% B:0.00%) | |
|
eXtreme Gammon Version: 1.21, MET: Rockwell-Kazaross
Logically, 1/o is the best ace since all the others either waste a pip, transpose, or lose anyway. You could show this if you wanted to go through all the rolls from now until the end of the game.

              
 
              
 | | White is Player 2
score: 0 pip: 161 | Money session Jacoby Beaver | pip: 167 score: 0
Blue is Player 1 | |
| XGID=-a----EaC---eE---c-e----B-:0:0:1:61:0:0:3:0:10 |
| Blue to play 61 |
| 1. | XG Roller+ | 13/7* 8/7 | eq: +0.187 |
| Player: Opponent: | 54.58% (G:14.89% B:0.59%) 45.42% (G:10.80% B:0.43%) | |
|
| 2. | XG Roller+ | 13/7* 7/6 | eq: -0.006 (-0.193) |
| Player: Opponent: | 49.94% (G:13.33% B:0.54%) 50.06% (G:12.78% B:0.57%) | |
|
eXtreme Gammon Version: 1.21
8/7 is better than 7/6, but I doubt you could show it using logic unless you had a really, really, really, really powerful computer.
The GWC difference happens to be much bigger in the 2nd position. Blue generally just loses regardless of how he plays 61 in the 1st position.