Below is a position where you have a choice to advance your anchor from a 20pt anchor to an 18pt anchor. I decided to advance the anchor and it was the wrong idea. Then I started tweaking the position in XG to try to learn when it is right to advance the anchor and when it is right to stay back.
I have to be honest, that didn't help and I'm stumped. What are some feature of the position that you look for to help decide with this choice?
         
 
          
 | | White is Player 2
score: 0
pip: 131 | Unlimited Game
Jacoby Beaver | pip: 148
score: 0
Blue is Player 1 |
|
| XGID=----bBD-C--AcC---b-bBdb---:0:0:1:22:0:0:3:0:10 |
| Blue to play 22 |
1. | XG Roller++ | 13/9 11/9 8/6 | eq: +0.166 |
| Player:
Opponent: | 54.47% (G:9.76% B:0.30%)
45.53% (G:7.15% B:0.18%) | |
|
| 2. | XG Roller++ | 11/3 | eq: +0.132 (-0.034) |
| Player:
Opponent: | 53.27% (G:9.62% B:0.29%)
46.73% (G:6.87% B:0.18%) | |
|
| 3. | XG Roller++ | 11/5 8/6 | eq: +0.071 (-0.095) |
| Player:
Opponent: | 51.60% (G:9.12% B:0.25%)
48.40% (G:7.24% B:0.18%) | |
|
| 4. | XG Roller++ | 13/9(2) | eq: +0.067 (-0.098) |
| Player:
Opponent: | 52.16% (G:9.70% B:0.33%)
47.84% (G:8.99% B:0.26%) | |
|
| 5. | XG Roller++ | 13/5 | eq: +0.057 (-0.108) |
| Player:
Opponent: | 51.20% (G:9.68% B:0.28%)
48.80% (G:7.86% B:0.22%) | |
|
| 6. | XG Roller++ | 20/18(2) 13/11 8/6 | eq: +0.007 (-0.159) |
| Player:
Opponent: | 50.13% (G:9.15% B:0.27%)
49.87% (G:8.86% B:0.19%) | |
|
eXtreme Gammon Version: 2.10