The Rubik's 3x3 is a challenging cube. It was created before the 2x2, 4x4, and 5x5 Rubik's cube. The official world record time for solving it is 5.55, created by a Dutch cuber named Mats Valk. Feliks Zemdegs also holds a world record for the 3x3, but it is not official. The record is 4.21. He also got a fail when he was using his MoYu Weilong v1 cube and at the last second, he got a corner twist. The record would be 5.33, but wasn't.