Dacha Tactics #66 - Dark blow - not a coincidence

The passed pawn has a lust to expand. Note the queening square is dark – how fortunate that we have a Golden dark bishop to assist! Find a smooth and elegant finish...

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!

See IM Yaacov discuss the solution with a video, coming soon.