Dacha Tactics #138 - Light Ping Pong Dacha

A very cool endgame I recently had. We have a healthy endgame advantage with the bishop pair plus an extra pawn. And the color money? Well, it's a dark bishop for us vs his knight, so that means we are ahead on dark but behind on light. Trading our bishop for his knight does give us passed pawns, but gives away way too much light - or so it seems. Or can we replenish the light in other ways?!

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!