Labyrinth 4D Wooden Puzzle

The idea is to unravel a metal ring from the hollow cube by guiding it around the various perforations in the wood. And if you think that sounds easy, think again. Because like most of the greatest puzzles, Labyrinth 4D is deceptively difficult. Just when you think you're on the right track you reach a dead end and have to start over. Of course you could always crack out the hacksaw but that would defeat the whole object of the exercise... the exercise being to tax your grey matter to the max. Grrrrr.

Labyrinth 4D Labyrinth 4D is a great hour-cruncher on long journeys; onlookers will wonder what on earth you're doing fiddling with a gloriously tactile wooden cube with holes in it. And when you tell them you're trying to free a ring from the cube's convoluted clutches.