Just click on a box to enter in a number (1-9, and 0 is a blank box). The goal of this game is to get the numbers 1-9 to show up only once in their row, column, and 3x3 box! This is a very easy level.
I didn't exactly know how to get user input, so my friend, Mr_sprite, made a simple guide in how to get user input. Thanks Mr_sprite!