Unlock

Challenge your mind through 160 puzzles . Can you solve them all? I guess no

Unlock is a puzzle game with one simple rule: all the block have to be blue.

Tap one block to change its color and that of the adjacent ones, seems pretty easy right (or maybe not)?

Exercise your brain to think different to complete all the 4 modes and your prize would be the highest QI you have ever reached!Just jocking.

Have fun, Maio.