[Retros] back rank mate

[Richard Stanley]

Hi Andrew,


> Saccing the B is a great idea. If I may suggest: the position can be

> "flipped" to trim a move and also give the PG equivalent of a model

> mate.


Thanks. I also discovered a similar PG in 8.0 after posting the 8.5
move one. I am trying to do something similar for f1N or f8N, but so
far without success.

Best regards,
Richard