Mate in 1 - Hard

Okay, well, this isn't actually a real puzzle, because, a) I don't know how to make one, and b) it isn't actually a legal move (so, really, no difference).

It's really hard, mainly because it requires an unconventional interpretation of rules that would be (I think) illegal by current FIDE rules. But still, I think it seems pretty legit. (It's nothing ridiculous, you probably could trick an amateur player, like me, into thinking it's legit).

If you want to see the solution, history, and explanation of the problem, visit http://en.wikipedia.org/wiki/Joke_chess_problem#Offbeat_interpretations_of_the_rules_of_chess.

I personally found this funny. Don't criticize my sense of humor. 

yeah, it's not legal :3

you have to promote to the same color.

hhahahahahaha... nice one... ingenious

you would have to promote the pawn to a black rook, a black knight would just take the white rook.