mate in 1, harder than it looks

came from another of my games, except i ommited a bishop on c4 and replaced the white knight with a white pawn for educational purposes.

problem changed to allow for multiple solutions

Any one of the three legal King moves to the second rank are solutions too.

Kf3 or 4 or 5 is a valid solution (and I have to admit the first I tried).

But let's face it: If you can castlemate in a real game and don't, you should be ashamed of yourself.

And this is harder than it looks... how? Creative puzzle though.

Good point =D

I think Morphy had a castle mate in one of his games. 

*ahem* he did.

eek! ur right! let me kill all those multiple mate solutions...

Killer add me pl0x i wanna add all the albertans.

ok yuekai