Turning a cube into a rotating multi-coloured puzzle isn’t terribly difficult. For other shapes, though, you need to figure out the perfect way to ensure every sub-section can rotate freely. Thankfully there’s software that can do that for you. Read More >>
Brace yourself for this math problem that was originally set for eight-year-old students in the Vietnamese town of Bao Loc. It’s apparently even stumped someone with a doctorate in economics with mathematics. Just add in numbers 1-9 so that it makes sense. (The colon represents division). See more >>
If arranging all of those coloured squares has become child's play for you, don't worry, some twisted individual has created a Rubik's Cube with an X-shape that looks like a complete nightmare when it's all mixed up.