Dacha Tactics #105 - Knight is the light undertaker...bishop pair mocked!

An interesting endgame from a blitz game of mine. It's an endgame where we battle the feared bishop pair. We have some things going for us, though! Our mini dark bishops do a nice job of replenishing the lack of a dark bishop. And we are +500 light! Can we use this to outplay the bishops?

Interact with the puzzle below.  If you get stuck, you can always click the "lightbulb" icon in the lower-left of the puzzle frame.  Good luck!