This is a sudoku solver using the backtracking algorithm. It includes a graphical GUI as well as a text based version.

Run GUI.py to play sudoku.

Click a box and hit the number on your keybaord to pencil in a number. To confirm that value press the ENTER key on that box. To delete a pencil in you can click DEL. Finally to solve the board press SPACE, sit back and watch the algorithm run.

You can view the video tutorials on how to create this project here: https://www.youtube.com/watch?v=eqUwSA0xI-s&t=871s

You can also run Sudoku-GUI-Solver in Gitpod, a free online dev environment for GitHub:

If you're intersted in a paid subscription with GitPod use the coupon code: TECHWITHTIM19