Can you find mate in 1

Bh2

There is no mate in one for black

1. Bh2 Qc7 stops mate in one

The King cannot move to the c file because of the knights. The King cannot capture a Knight because both are protected by the Bishops. Blacks Bishop is pinned to it's King and unable to move because of Whites Rook.

Qc3#

There is a mate in one for white. He has to play Qb3# to win immediately!

Correct...Qb3 Qc3 is an illegal move, I wrote the wrong file...thanks

dont think thr is legal move

But, Qb3 is a checkmate since the black bishop is pinned by white's rook and cannot move.

White's minor pieces and preventing the black king from being able to move.

There's no other way for white to mate than if he play Qb3#