Leave the message blank for the example, or import a sudoku code to solve it !
made this a year ago (october 2025) and I still haven't finished it yet so I share it here ! There is also a pretty clean sudoku engine in the project, but I don't know how to make it fun ... I started to make a sudoku generator but it's really too long to do and I just left this project. v0.1: feel free to remix and try to make something good !