Sukii

Good news, bad news :D

Good first: no need to code a Sudoku Generator because I'm using a library (Sudoku-core: https://github.com/komeilmehranfar/sudoku-core).

Bad news: the library is little bit slow when generating a hard Sudoku. It takes around 7s - 15s. Now I have to delete all my JS and write it all over again ; v ; (which feels like killing your kid hehehe)

Here (down) is a photo of the Sudoku (hard) puzzle generated with the Sudoku-core library:

So I have good news, and bad news :)
good first: I added the buttons so you can change the difficulty (I'll commit the changes later hehe) + the logic works pretty good (one solution only yay)
bad news: the game crushes after generating 6 or 5 puzzles (now I have to fix that and maybe change a lot ; v ;)

Added a function to choose the difficulty of the Sudoku (but no buttons yet so you can't hehe) and a function to count the solutions (which shouldn't be more than one with the new logic >v< )

From bad to worse 〒v〒

Created the Sudoku generator, and styled it a little bit + played and found out the Sudoku has 2 solutions, and that means my logic has a mistake ; v ;