Endgame Problem 37

White to move for best endgame (black prisoners 12, white prisoners 17, komi 6.5, game result b+4.5)  

tapir: two four dans in a fast (not blitz) kgs game. white lost something here - what is best play, and what is the result?

• Attempts
• Solution?

Result  

Bill: How did the actual play go? Thanks. :) tapir: The rest are teire plays.