Pet Rescue Saga Level 111 is a level that you need to clear 100% of the board.
This includes meshed blocks (that need a match beside them to free the mesh) and metal boxes that can only be removed with line blasters, bombs or rockets.
This level is very difficult to do and I found using specific bombs or line blasters to destroy each metal box was the only way to get through it.
The video example on this page gives you a guide in which bombs or line blasters to use as the metal boxes can line up differently