I got this puzzle earlier this week at my chess club.  All I know is 10 is the shortest amount of moves to win - I played the position on my computer, but it took me 20+ moves.  Sorry, I don't have the exact solution, just wanted to share the position.

oh, If you want to find the actually moves, you can set it up at http://www.shredderchess.com/online-chess/online-databases/endgame-database.html