I challenged myself to beat my own "high score" in solving the 3x3 rubik's cube. My highest score is solving it under 90 seconds and the challenge is to do it under 60 seconds!
The 2x2 is a lot easier sinds it has fewer possible positions compared to the 3x3.
My best of the 2x2 is under 45 seconds
(solving the 3x3 is my favorite)