World fourty have ten boxes to rearrange. One must be placed at the top left and nine at the bottom right.
Step by step solution
First place the three boxes at the bottom, which can not be moved up. Go DOWN, DOWN, DOWN, DOWN, LEFT, LEFT and DOWN. Push RIGHT, RIGHT, RIGHT, RIGHT and RIGHT.
Go LEFT, LEFT, LEFT, UP, UP, UP, UP, LEFT, LEFT, LEFT, LEFT, DOWN, DOWN, LEFT, DOWN and DOWN. Push RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, RIGHT and RIGHT.
Go LEFT, LEFT, LEFT, LEFT, LEFT, LEFT, LEFT, UP, UP, LEFT, LEFT, DOWN and DOWN. Push RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, RIGHT and RIGHT.
Go UP, UP, LEFT, UP, UP, UP, RIGHT, RIGHT, RIGHT, RIGHT, UP, UP, UP, UP, LEFT, LEFT, LEFT and LEFT. Push DOWN, DOWN, DOWN, DOWN, DOWN, DOWN and DOWN. Go LEFT, DOWN and push RIGHT. Go DOWN, RIGHT, push UP, go LEFT and UP. Push RIGHT, RIGHT and RIGHT. Go LEFT, LEFT, LEFT, UP, UP, LEFT, LEFT, LEFT, LEFT, DOWN, DOWN and LEFT. Push UP, go LEFT, UP, push RIGHT, RIGHT, RIGHT, RIGHT and RIGHT. Go LEFT, UP, UP, RIGHT, RIGHT and DOWN. Push DOWN, DOWN, DOWN, go LEFT and DOWN. Push RIGHT, go DOWN, RIGHT, push UP, go LEFT, UP, push RIGHT and RIGHT. Go LEFT, LEFT, UP, UP, UP, UP, LEFT, LEFT and UP. Push RIGHT, go LEFT, DOWN, DOWN, LEFT, LEFT, UP, UP, UP, UP, RIGHT, RIGHT, RIGHT, RIGHT and DOWN. Push DOWN, DOWN, DOWN, DOWN, DOWN and DOWN. Go LEFT, DOWN and push RIGHT. Go DOWN, RIGHT, push UP, go LEFT, UP and push RIGHT.
Go LEFT, UP, UP, UP, RIGHT, RIGHT, RIGHT, RIGHT, UP, UP and LEFT. Push LEFT, LEFT, go RIGHT, RIGHT, RIGHT, UP, UP, LEFT, LEFT, LEFT, LEFT and DOWN. Push DOWN, DOWN, DOWN, DOWN, DOWN and DOWN. Go LEFT, DOWN, push RIGHT, RIGHT, RIGHT and RIGHT. Go LEFT, LEFT, LEFT, UP, UP, UP, UP, UP, UP, RIGHT and RIGHT. Push DOWN, go UP, RIGHT, RIGHT, DOWN, DOWN, LEFT, push LEFT and LEFT. Go UP, LEFT, push DOWN, DOWN, DOWN, DOWN, go LEFT, DOWN, push RIGHT, RIGHT and RIGHT.
Now place the last box from the nine of the bottom right. Go LEFT, LEFT, UP, UP, UP, UP, UP, UP, UP, UP, RIGHT and RIGHT. Push DOWN, DOWN, DOWN, go UP, RIGHT, RIGHT, DOWN, DOWN and LEFT. Push LEFT, LEFT, go UP, LEFT, push DOWN, DOWN, DOWN, DOWN, go LEFT, DOWN, push RIGHT, RIGHT.
Go LEFT, UP, UP, UP, LEFT, LEFT, LEFT, LEFT, LEFT, UP, UP, UP and LEFT. Push UP, go RIGHT, UP, push LEFT, LEFT and LEFT.
Congratulations. You have completed world fourty. Get ready for world fourty-one.