-------------------
|[ ][=][ ][=][ ][N][ ][k]|
|[=][ ][=][ ][=][P][p][p]|
|[ ][=][ ][=][ ][=][ ][=]|
|[=][ ][=][ ][=][ ][=][ ]|
|[ ][=][ ][=][ ][=][ ][P]|
|[=][ ][=][ ][=][ ][=][ ]|
|[ ][=][ ][=][ ][Q][K][=]|
|[b][ ][=][ ][=][ ][=][ ]|
-------------------
White to move and mates in 3 moves against any defense.

The solution.

Send your solution here and I will post it later.
.