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.

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 ...

Following is a transcript of the video. Narrator: This is the iconic Rubik's Cube. A 22-year-old in Australia can solve it in a record 4.22 seconds. Others might spend hours, days, weeks, or even ...