Australian speedcuber Feliks Zemdegs has broken the Rubik's Cube world record again on Sunday. The 22-year-old professional solved a traditional 3x3x3 Rubik's Cube in 4.22 seconds, beating a record of 4.59 seconds, jointly held by him and South Korea's SeungBeom Cho. The first person to solve the Rubik's Cube under 5 seconds was the then-14-year-old American Lucas Etter in 2015.