**An expert level sudoku** To play: click on a square and either click a number on the right or use you keyboard to pick a number to place. You can also type notes using the switch or the N-key. And if you hate blue, you can change the theme from the theme button in the top left corner.
It's pretty difficult, so don't be too hard on yourself if you can't beat it! TO REMOVE A NUMBER JUST TYPE IT AGAIN
