Crazy about Castling
Yes, crazycolorz, unfortunately there are two solutions in this puzzle, Lord-Chaos... try again next time! 
Well it doesn't allow two solutions, and plus the title does sort of nudge you towards... castling? unless i should make a puzzle that FORCES castling to be a mate in 1, but i can;t rly be bothered =P imma make more "middle" game ones where they're like not hogwash, but they;re gonna be seriously easy.