World seventy-eight is a puzzle with special arrangements of the placed boxes.
Step by step solution
Go UP, LEFT, LEFT, DOWN, DOWN, RIGHT, push RIGHT, RIGHT and RIGHT. Push DOWN, go RIGHT, push UP, UP, UP, go LEFT, UP, push RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, go UP, RIGHT and push DOWN.
Go LEFT, LEFT, LEFT, LEFT, LEFT, LEFT, DOWN, DOWN, DOWN, DOWN, RIGHT, RIGHT, UP and push LEFT. Go DOWN, LEFT, push UP, UP, UP, go LEFT, UP, push RIGHT, RIGHT, RIGHT, RIGHT, RIGHT and RIGHT.
Go LEFT, LEFT, LEFT, LEFT, LEFT, DOWN, DOWN, DOWN, LEFT, LEFT, LEFT, DOWN, DOWN, DOWN, RIGHT, RIGHT, push UP and UP. Go DOWN, DOWN, LEFT, LEFT, UP, UP, UP, RIGHT, push RIGHT, go DOWN, RIGHT, push UP, UP, UP, go LEFT, UP, push RIGHT, RIGHT, RIGHT, go DOWN, RIGHT and push UP. Go LEFT, UP, push RIGHT, RIGHT and RIGHT.
Go LEFT, LEFT, DOWN, LEFT, LEFT, LEFT, DOWN, DOWN, DOWN, DOWN, LEFT, DOWN, DOWN, DOWN, DOWN, RIGHT, RIGHT, UP and push RIGHT. Go UP, push UP, go RIGHT, RIGHT, UP, push UP, UP, UP, UP, go RIGHT, UP, push LEFT and LEFT.
Go RIGHT, DOWN, DOWN, DOWN, DOWN, DOWN, RIGHT, RIGHT, UP and push LEFT. Go DOWN, LEFT, push UP, UP, UP, go RIGHT, UP, UP, LEFT and push DOWN. Go RIGHT, DOWN, push LEFT and LEFT.
Go RIGHT, DOWN, DOWN, DOWN, RIGHT, RIGHT, DOWN, DOWN, LEFT, push UP, UP, go RIGHT, UP, push LEFT, go DOWN, LEFT, push UP, UP, UP, UP, go RIGHT, UP and push LEFT.
Go DOWN, DOWN, DOWN, DOWN, DOWN, DOWN, LEFT, LEFT and push UP. Push RIGHT, go DOWN, RIGHT, push UP, UP, UP, UP and UP.
Go DOWN, DOWN, DOWN, DOWN, LEFT, LEFT, LEFT, UP, push RIGHT, RIGHT, go DOWN, RIGHT, push UP, UP, UP, go LEFT, UP, push RIGHT, go DOWN, RIGHT and push UP.
Go LEFT, DOWN, DOWN, DOWN, LEFT, LEFT, LEFT, LEFT, LEFT, DOWN, DOWN, DOWN, RIGHT and push RIGHT. Go DOWN, RIGHT, push UP, UP, UP, go LEFT, UP, push RIGHT, RIGHT, go DOWN, RIGHT, push UP, UP, UP, go LEFT, UP and push RIGHT.
Go DOWN, DOWN, DOWN, DOWN, DOWN, RIGHT, DOWN, DOWN, LEFT, push LEFT, LEFT, go DOWN, LEFT and push UP. Go DOWN, LEFT, LEFT, UP, push RIGHT, RIGHT, go DOWN, RIGHT, push UP, UP, UP, UP, go LEFT, UP, push RIGHT, RIGHT, go DOWN, RIGHT, push UP, UP, go DOWN, LEFT, LEFT, LEFT, LEFT, UP, UP, UP, RIGHT, RIGHT, RIGHT, DOWN and push RIGHT.
Go DOWN, DOWN, DOWN, LEFT, LEFT, DOWN, DOWN, DOWN, LEFT, LEFT, UP and push RIGHT, go DOWN, RIGHT, push UP, UP, UP, go LEFT, UP, push RIGHT, RIGHT, go DOWN, RIGHT, push UP, UP and UP.
Go DOWN, DOWN, DOWN, LEFT, LEFT, LEFT, LEFT, LEFT, DOWN, DOWN, LEFT, LEFT, DOWN, push RIGHT, RIGHT, RIGHT, RIGHT, go DOWN, RIGHT, push UP, UP, UP, UP, go LEFT, UP, push RIGHT, RIGHT, go DOWN, RIGHT, push UP and UP.
Go DOWN, LEFT, LEFT, LEFT, LEFT, LEFT, LEFT, LEFT, UP, UP, LEFT and push DOWN. Go LEFT, DOWN, push RIGHT, RIGHT, RIGHT, RIGHT, go DOWN, RIGHT, push UP, UP, UP, go LEFT, UP, push RIGHT, RIGHT and RIGHT.
Go LEFT, LEFT, DOWN, DOWN, DOWN, LEFT, LEFT, LEFT, DOWN, LEFT, LEFT, DOWN and push RIGHT. Go UP, RIGHT, UP, RIGHT, RIGHT, DOWN, DOWN, DOWN, LEFT, LEFT, push UP, UP, go LEFT, UP, push RIGHT, RIGHT, RIGHT, go DOWN, RIGHT, push UP, UP, UP, go LEFT, UP, push RIGHT and RIGHT.
Congratulations. You have completed world seventy-eight. Get ready for world seventy-nine.