The MultiCuber 999 is a LEGO contraption capable of solving a 9x9x9 cube in approximately 35 minutes by way of a smartphone app.
In fact, the MultiCuber 999 holds the Guinness World Record for the largest Rubik’s cube ever solved by a robot!
Ultimately, the app can identify the colors of the Rubik’s cube and calculate a solution, which it then communicates to the programmable bricks to control the motors and transform the cube.