Inside3 puzzles involve a ball and a blind labyrinth. The aim being to navigate the ball through the maze that you can’t actually see!
This is the hardest of all the Inside3 puzzles. They have done away with the map and being part of the Phantom series it also has another ball inside to make it even harder.
You need to rely on your senses and try every route in order to complete this. It is possible but will require some serious patience.
If you do give up it is still quite an attractive cube….