A powerful sudoku solver which can solve the hardest sudoku puzzles (9x9). It can be used through command line as well as GUI.
21
The problem Sudoku solver solves
It solves the hardest sudoku puzzles in fraction of a second.
Challenges I ran into
Creating the algorithm itself was very challenging. Some puzzles have more that one solution. Those puzzles caused a lot of problems. Finally, the issue was resolved.