For five decades now – coinciding with Rubik’s 80th birthday in July – the cube has endured as a design marvel, a seemingly simple yet challenging lightweight plastic toy that vexes the impatient.

An 'impossible' Rubik's cube brainteaser can only be solved in 30 seconds by the most eagle-eyed puzzlers as almost all of ...

Purists will note, however, that the steppers are fitted with adapters that slot directly into modified center squares on the cube. A regulation Rubik’s, this is not. The design doesn’t ...