🚀 Free Sudoku Solver
Input your Sudoku puzzle below and get an instant solution. Our advanced algorithm can solve any valid Sudoku puzzle in seconds.
Input Puzzle
Solution
Input your puzzle and click "Solve" to see the solution
How to Use the Sudoku Solver
Input Your Puzzle:
- • Click on any cell and enter numbers 1-9
- • Leave empty cells blank
- • Use the "Load Example" button to try it out
- • Import puzzles from text files
Get Your Solution:
- • Click "Solve" to find the solution instantly
- • The solution appears in the right panel
- • Use "Fill Solution" to copy it back to the input
- • Export puzzles and solutions as text files
Frequently Asked Questions
How does the Sudoku solver work?
Our solver uses advanced backtracking algorithms to find the unique solution to any valid Sudoku puzzle. Simply input your puzzle numbers and click "Solve" to get the answer instantly.
Can the solver handle all difficulty levels?
Yes! Our solver can solve puzzles of any difficulty level, from easy to evil. It works with any valid Sudoku puzzle that has a unique solution.
How do I input my puzzle?
Click on any cell and enter numbers 1-9. Leave empty cells blank. You can also import puzzles from text files or use our "Load Example" button to try it out.
What if my puzzle has no solution?
If the solver cannot find a solution, it will display an error message. This usually means the puzzle has no valid solution or contains conflicting numbers.
Can I export the solution?
Yes! You can export both your input puzzle and the solution as text files using the "Export" button. You can also copy the solution back to the input grid using "Fill Solution".
