Treasure "The Ultimate"

＊"Treasure The Forth".Finally appeared!Ultimate super difficult puzzle‥It is a masterpiece of the slide puzzle．Maximum difficulty ....Maximum fun ...Now, how do you solve this conundrum? ********You are a treasure hunter!The end of many adventures, you have found a treasure box hidden in a stone chamber.Due to rocks of different sizes stacked in a stone chamber, you can not easily put out treasure box.Well you are trying to move the rock, and take out out treasure box!How to play:(Gray area is a blank.You can move Rocks toward blanks .When You tap the rock next to a blank,You can move the rock to the blank.For example,if there are Rock adjacent to the two blanks which you want to move.You can choose two directions can be moved either left or upward.When you tap the top of the Rock, the rock moved upward.When you tap the left edge of the Rock, the rock moves toward the left.)