(White: Kb3, Qb6, Rg8, Be6. Black: Kh7, Rd7, h6.)
MATE in 3 Moves
Thanks to Valtteri Pärssinen, Finland for pointing out that the white king is shown misplaced at b3. The correct is: king on b1. I am leaving this note here until I correct the diagram.
(White: Kd8, Rc1, Re1, a3, d3. Black: Kd6, d4.)
MATE in 3 Moves Solution