Clear the grid by clicking on the numbers in order from 1 to n^2 where n is the size of the grid, as fast as you can!
In Hard Mode, the numbers shuffle every time you clear a square!
Try to get your name onto the leaderboard.
If you beat your previous best and use the same name, your score will be updated.
Big thanks to C for advice and testing, and Pellepennan Aspelin for the original concept.
By Dan Harris