I can't figure out level 42 on Pet Rescue Saga

pitmama1

There are boxes on level 42 and can't figure out how to break without running out of turns. I've never had this much trouble figuring out this game.  Please give me some hints or advice.

Digger1

Hey check out this video of a player who has already passed the level, I hope it helps you out. 

https://www.youtube.com/watch?v=ZHDsMcNxAcw