This Excel spreadsheet will solve any valid sudoku puzzle.
I created this spreadsheet so that I could visually see my algorithm solve any sudoku puzzle.
This project is intended to be visual NOT fast. Running through an expert-level sudoku puzzle is satisfying at normal speed, don’t use SLO-MO on a difficult puzzle or it will take quite some time to solve.
The SLO-MO feature can be used to slow the code down so you can see how the algorithm works. The SLO-MO value (milliseconds) is placed in cell "O11". SLO-MO mode is toggled with the SLO-MO button.
I may add features to the spreadsheet in the future.