Mate in 2!
A bit disturbing that white has promotion choice. Better: place bPf7 on g6.
How can I do that?
You can edit the diagram. Worth spending some time on if you don't know how to edit. No time to explain. With an open space on f7, only 1 promotion works.
Mate in 2!
1. Kd8, Kg8 2. Pawn promote to rook or queen (idk how to write it in format) checkmate
Here, e8=R or e8=Q