World two hundred and eightteen is another tiny, but very hard puzzle.
Step by step solution
Go UP, push RIGHT, RIGHT, RIGHT, go DOWN, DOWN, RIGHT, RIGHT, push UP and UP. Go DOWN, DOWN, LEFT, LEFT, UP and push LEFT. Go RIGHT, DOWN, RIGHT, RIGHT, UP, UP and push LEFT. Go UP, push RIGHT, RIGHT, RIGHT, go LEFT, LEFT, DOWN, DOWN, DOWN, LEFT, LEFT, UP, LEFT, UP, LEFT, LEFT, DOWN, push RIGHT and RIGHT.
Go UP, push RIGHT, RIGHT, go UP, RIGHT, RIGHT, RIGHT, DOWN, DOWN and push LEFT. Go RIGHT, UP, UP, LEFT, LEFT, LEFT, UP, LEFT, LEFT and push DOWN. Go UP, RIGHT, RIGHT, DOWN, DOWN, LEFT and push LEFT. Go RIGHT, RIGHT, UP, RIGHT, RIGHT, RIGHT, DOWN, DOWN, RIGHT, RIGHT, UP, UP, push LEFT, LEFT, LEFT and LEFT.
Go RIGHT, RIGHT, DOWN, DOWN, LEFT, DOWN, LEFT, LEFT, LEFT and push UP. Go LEFT, UP, UP, UP, RIGHT, RIGHT and push DOWN. Go UP, LEFT, LEFT, DOWN, DOWN, DOWN, LEFT, LEFT, UP and push RIGHT. Go DOWN, RIGHT, RIGHT, DOWN, RIGHT, RIGHT, RIGHT, UP, RIGHT, UP, UP, LEFT, LEFT, LEFT, UP, LEFT, LEFT, DOWN and push DOWN.
Go LEFT, DOWN and push RIGHT. Go UP, UP, UP, RIGHT, RIGHT, DOWN, RIGHT, RIGHT, RIGHT, DOWN, DOWN, RIGHT and push UP. Go RIGHT, UP, push LEFT, LEFT, LEFT and LEFT.
Congratulations. You have completed world two hundred and eighteen. Get ready for world two hundred and nineteen.