Break through the licorice X-locked candy and down through the meringues to get candy filling up the empty spaces on the right of the board. Then, make your moves as often as you can in the right: all moves on the right will affect the board on the left.
Horizontal striped candy on the left will cut through the obstacles on the right. If you get a vertical striped candy, drop it through to the play area on the right and use it to clear up the final meringues and jelly pieces. Any combos here will have a great effect as they affect both sides of the playing field.