What is Sudoku Generator/Solver?
A free Sudoku generator and solver. Generate new puzzles at any difficulty — easy, medium, hard, or expert — or paste in your own puzzle and let the solver find the solution using backtracking. Great for practice or checking your answers.
How to use
- Choose a difficulty level and tap Generate to create a new Sudoku puzzle.
- Fill in cells by clicking and typing numbers 1-9, or paste an existing puzzle.
- Tap Solve to instantly find the solution, or tap Check to validate your answers.
Result
You're stuck on a newspaper Sudoku. Enter the given numbers into the grid, tap Solve, and the tool fills in all 81 cells in under a second using a backtracking algorithm.
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