why do your problems have to have so many god damn pieces?.
Hurts my head
As I've said, I have to use promoted pieces to present my idea clearly.
My main idea is castling, Black checks and White mates. Let's see:
I'm waiting for the confirmation of either Adrian or BDP. I hope the key is nice and sound!
Good point about 2.Bxh1# - I thought any check by Black would do to disrupt mate in 2 but overlooked the defensive move is also mate !
As for 1...Rd4, you tricked me there because what was a white pawn on g3 became a black one, otherwise 2.Rxf2# works o/k.
Back to the drawing board