World one hundred and seventy-nine is very beautiful, yet hard puzzle.
Step by step solution
Push RIGHT, go DOWN and push RIGHT. Go DOWN, RIGHT, RIGHT, push UP, go RIGHT, UP, UP and push LEFT. Go RIGHT, DOWN, DOWN, LEFT, DOWN, LEFT, LEFT, UP and push RIGHT. Go UP and push UP. Go RIGHT, RIGHT, DOWN, DOWN and push LEFT. Go DOWN, LEFT, push UP, go LEFT, LEFT, UP, UP, push RIGHT and RIGHT. Go LEFT, push DOWN, go LEFT, DOWN and push RIGHT. Go LEFT, UP, LEFT and push LEFT. Go DOWN and push LEFT.
Go DOWN, LEFT, LEFT and push UP. Go LEFT, UP, UP and push RIGHT. Go UP, RIGHT, push DOWN, go LEFT, LEFT, DOWN, DOWN, RIGHT, DOWN, RIGHT, RIGHT, UP, RIGHT, UP, UP and push LEFT. Push DOWN, go UP, UP, LEFT, LEFT, DOWN, LEFT, DOWN, DOWN, RIGHT and push UP. Push RIGHT, RIGHT, go UP, UP, LEFT, LEFT and push DOWN. Go UP, RIGHT, RIGHT, DOWN, DOWN, LEFT and push LEFT. Go DOWN, DOWN, RIGHT, RIGHT and push UP. Go DOWN, LEFT and push UP.
Go LEFT, UP, UP, UP, RIGHT, RIGHT, DOWN, push LEFT, go UP, LEFT and push DOWN. Go RIGHT, RIGHT, LEFT, RIGHT and push DOWN. Push RIGHT, go DOWN, push LEFT, go DOWN, LEFT, LEFT, UP, push RIGHT, go DOWN, RIGHT and push UP. Go RIGHT, UP, push RIGHT, RIGHT, go DOWN, RIGHT, DOWN, RIGHT, RIGHT, UP, RIGHT, UP, UP and push LEFT. Go RIGHT, DOWN, DOWN, LEFT and push LEFT. Go RIGHT, RIGHT, UP, UP, LEFT and push LEFT. Push DOWN. Push LEFT, LEFT and LEFT.
Go RIGHT, RIGHT, RIGHT, UP, RIGHT, RIGHT, DOWN, DOWN, LEFT, DOWN, LEFT, LEFT and push UP. Go DOWN, RIGHT, RIGHT, UP, RIGHT, UP, UP, LEFT, LEFT, DOWN and push DOWN. Go LEFT, LEFT, UP, UP and push RIGHT, go LEFT, DOWN and push RIGHT. Go DOWN, RIGHT, RIGHT, RIGHT, UP, UP, LEFT, push DOWN, go RIGHT, DOWN and push LEFT.
Congratulations. You have completed world one hundred and seventy-nine. Get ready for world one hundred and eighty.