The X-Cube (Amazon Exclusive) The next-generation, shape-shifting, twisting logic puzzle. Train your brain! Develops logical skills and 3D cognition in children, teens, and adults. Invented by a college student and funded on Kickstarter. Smooth and robust turning quality Perfect for beginners and experts alike. Check out the online tutorial videos if you get stuck. Created in 2013 by a 19 year old college student and twisty puzzle enthusiast. Funded on Kickstarter Featured on Steve Harvey, Chicago Magazine, Chicago Reader, Gizmodo, the Sun Times, and more.