Very recently I saw this play come up and it is the same idea.
        
 
         
 | | White is ngupowered
score: 0
pip: 145 | | 7 point match | pip: 145
score: 0
Blue is Ryotaro |
|
| XGID=---BB-CbB---cD---e-e-A--A-:0:0:1:43:0:0:0:7:10 |
| Blue to play 43 |
| 1. | XG Roller+ | 13/6 | eq: +0.122 |
| Player:
Opponent: | 51.99% (G:14.10% B:0.38%)
48.01% (G:9.44% B:0.26%) | |
|
| 2. | XG Roller+ | 24/21 13/9 | eq: +0.062 (-0.060) |
| Player:
Opponent: | 51.00% (G:8.51% B:0.19%)
49.00% (G:5.87% B:0.14%) | |
|
| 3. | 4-ply | 21/14 | eq: +0.074 (-0.047) |
| Player:
Opponent: | 51.49% (G:11.06% B:0.26%)
48.51% (G:9.02% B:0.24%) | |
|
| 4. | 4-ply | 24/21 6/2 | eq: +0.036 (-0.086) |
| Player:
Opponent: | 50.40% (G:7.83% B:0.13%)
49.60% (G:5.97% B:0.14%) | |
|
| 5. | 3-ply | 8/5 8/4 | eq: +0.035 (-0.087) |
| Player:
Opponent: | 50.06% (G:14.31% B:0.34%)
49.94% (G:11.24% B:0.37%) | |
|
eXtreme Gammon Version: 2.10, MET: Kazaross XG2
If we anchor up the opponent has zero bad rolls from now until eternity. It's simply a race waiting to happen where he plays all his poor rolls behind us. If however we stay split all of a sudden there are a good deal of numbers that leave a shot when we have a strong board and he has no board. [65 63 62 54 51] and the numbers that stack [52 43 32 41] are no bargain as he'll face the same problem only greater next turn.
As already mentioned, 65@ would be preferred for the nactation where @ = anchor but 65P would be understood.
Stick