Rotate the gear pull any four gear out of the core it takes two clicks to isolate and move only one section of gears your goal is to rebuild the cube with one solid face of colour on each side meffert39s puzzles gear shift puzzle mission to rebuild the cube with one solid face of colour on each side developed by one of the world39s leading puzzle inventors the meffert puzzles create a challenge that will leave your head spinning 5 styles in this unique series