In 2010, a group of mathematicians used a bank of supercomputers at Google to show any Rubik's Cube could be solved in 20 moves.

India opener Pratika Rawal is only 25 but she is clearly a woman of many sporting talents, starting with the Rubik's cube.

In the quiet before the whir of motion, a cube sits scrambled. Then, in the time it takes to blink—actually, even less—it’s done. Solved. Six uniform faces, each a solid hue. It took just 0.103 ...