Unlock the King Collection Unlock the King 100 hand-crafted levels with increasing complexity. Originally designed concept, including electronic board, lightning-fast piece movements, trigger buttons and movable parts; Extremely easy to learn and extremely complex to master; Originally composed music to help you focus and relax while solving the puzzles A fun chess puzzle now available to everyone (even to those who never played chess) Unlock the King II Originally designed concept, including electronic board, lightning-fast piece movements, trigger buttons and movable parts; Designed for Unlock The King fans and newcomers alike; 70 originally design levels; Original soundtrack; Unlock the King III Brand new gameplay mechanics based on the Rubik's cube; Originally designed concept, including electronic board, lightning-fast piece movements, trigger buttons and movable parts; 50 originally design levels; Original soundtrack; Designed for Unlock The King fans and newcomers alike;