World four hundred and ninety-three is very nice looking, symmetric puzzle.
Step by step solution
Go DOWN, RIGHT, DOWN, DOWN, LEFT and push UP. Go DOWN, DOWN, LEFT, LEFT, UP, LEFT, UP, UP, RIGHT and push DOWN. Push RIGHT, RIGHT, go DOWN, DOWN, LEFT, LEFT and push UP. Go DOWN, RIGHT, RIGHT, UP, UP, LEFT and push LEFT. Go DOWN, DOWN, RIGHT, RIGHT, DOWN, DOWN, RIGHT, RIGHT, UP, push LEFT, go DOWN, LEFT, push UP and UP.
Go LEFT, LEFT, UP, UP, RIGHT, RIGHT and push DOWN. Go RIGHT and push DOWN. Push LEFT, go UP, UP, LEFT, LEFT, UP, UP, RIGHT, RIGHT and push DOWN. Go UP, LEFT, LEFT, DOWN, DOWN, RIGHT and push UP. Go RIGHT, RIGHT, push DOWN and DOWN. Go UP and push LEFT. Go DOWN, DOWN, DOWN, DOWN, RIGHT, RIGHT, UP, push LEFT, go DOWN, LEFT, push UP, UP and UP.
Go RIGHT and push DOWN. Go UP, UP, UP, LEFT, LEFT, LEFT, DOWN, DOWN, DOWN, DOWN, DOWN, LEFT, LEFT, UP, push RIGHT, go DOWN, RIGHT, push UP, UP and UP. Go LEFT, push DOWN, go RIGHT, push RIGHT and RIGHT. Go UP, RIGHT, UP, UP, LEFT, LEFT, LEFT and push DOWN. Go UP, LEFT and push DOWN. Go RIGHT, UP, RIGHT, RIGHT, RIGHT, DOWN, DOWN, LEFT and push UP.
Go RIGHT, UP and push LEFT. Go DOWN, DOWN, DOWN, DOWN, DOWN, RIGHT, RIGHT, UP and push LEFT. Push UP, go DOWN, DOWN, LEFT, push UP and UP. Go LEFT, LEFT, DOWN, DOWN, LEFT, LEFT, UP, push RIGHT, go DOWN, RIGHT, push UP, go LEFT, UP and push RIGHT.
Congratulations. You have completed world four hundred and ninety-three. Get ready for world four hundred and ninety-four.