feliks aleksanders zemdegs (, ; born 20 december 1995) is an australian "speed cuber" which means he solves rubik's cubes as fast as possible. zemdegs set a new record in solving the rubik's cube with a time of 4.221 seconds. the record was set on may 6, 2018 at a rubik's cube contest called "cube for cambodia". zemdegs also set a record time of 4.73 seconds in 2016, but the 2016 record was broken by american patrick ponce.