Robot Solves Rubik's Cube In Mind-Blowing 0.637 Seconds

Guinness World Records/YouTube

With six mechanical arms, a load of cameras, and some extremely fiddly computer algorithms, this robot has entered the Guinness World Records once again with its ability to solve a Rubik's Cube puzzle in a flash.

The Sub1 Reloaded has solved a Rubik’s Cube in just 0.637 seconds, beating the previous record of 0.887 seconds that was set by an earlier version of the bot in January 2016. Meanwhile, the record for mere humans is 4.904 seconds, set in 2015 by 14-year-old Lucas Etter.

According to the Guinness World Records, here's how the robot did it: “The computer receives two pictures of the cube, identifies the color of each piece and calculates a solution with Tom Rokicki's extremely fast implementation of Herbert Kociemba's Two Phase Algorithm. The solution is then handed over to an Arduino-compatible Infineon AURIX™ microcontroller board which orchestrates the 21 moves of six high-performance steppers, to turn each side of the cube.”

Sub1 Reloaded actually broke the record towards the end of 2016 at the electronica trade fair in Munich, Germany. However, it's only just been verified and officially announced by a comparatively snail-paced humankind. 

You can check out the robot in action below. Be warned, blink and you'll miss it.

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