One of the best brain-teaser. Block Touch, A fabulous puzzle game. A RUBIK'S CUBE 2.0When you click on a square, you change its color and the color of every adjacent squares. To succeed the Hard mode you will need a lot of reflection. MAKE YOU BRAIN WORK. Easy: Leave only 1 colored square or less. Hard: Make all the square greyGood luck. Our Facebook: https://www.facebook.com/blocktouch/Offical Site: https:/goto4ever.com.