Dacha Tactics #24 - Nimzo light squeeze featuring triangulation!

Here black has a large advantage, what with the poor dark bishop sleeping in the b2 boondocks. That being said, our knight isn't great either and our king needs to find a way to invade. Color money time! We are behind on dark and ahead on light. Let's see if we can squeeze our way into e4-- light...

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!