World four hundred and thirty-three is very fast to complete puzzle with four ice boxes.
Step by step solution
Go UP and push RIGHT. Go RIGHT, DOWN, RIGHT, RIGHT, push UP and UP.
Go LEFT, UP, LEFT and push DOWN. Push LEFT.
Go RIGHT, RIGHT, RIGHT, DOWN and push LEFT.
Go LEFT, DOWN, DOWN and push LEFT.
Congratulations. You have completed world four hundred and thirty-three. Get ready for world four hundred and thirty-four.