We’ve all seen videos of Rubik’s cube champions who can solve the puzzle in less than 5 seconds. And there are cube-twisting robots that can solve the cube even faster, often in under a second.

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 ...