i'd rather post first than post "idiot". well, chess.com should block you first, don't you think?

bishop control the light square and its the only move for Black

the rook must go on the last rank and black square

hi

good one

and i thought it was going to be hard

plenty of longer routes to mate here :P  Like almost any rook move from white :P

nice

Why doesn't any other rook move along the file work?

They work but this is the single fastest way to mate. Perhaps it would have been more clever to write 'mate in two' in the title, it was probably in the description in the original puzzle.

hmm:)

 Ok. Thanks for the quick reply!

Piece of cake!!

OMJ. I solved one finally

easy

Why do people compete at anything? Isn't the question part of the answer?

a bit nice.

good one!

I just saw the puzzle posted and I already know the solution even without browsing it...

cool