Sudoku Solver Online - Free Step-by-Step Puzzle Solver
Stuck on a sudoku puzzle? Our free sudoku solver can help. Just enter the numbers from your puzzle, and we'll solve it step by step, showing you exactly how each move works. It's perfect for learning new techniques, checking your work, or getting unstuck when you hit a wall. Best of all, it's completely free to use.
What is a Sudoku Solver?
A sudoku solver is a smart tool that uses logical algorithms to solve sudoku puzzles automatically. Our online sudoku solver can analyze any valid puzzle and walk you through the solution step by step. Whether you want to learn advanced solving techniques, verify that your answer is correct, or just get past a tricky spot in a challenging puzzle, our solver has you covered.
How to Use Our Sudoku Solver
Using our free sudoku solver couldn't be easier:
- Type in all the given numbers from your puzzle into the grid
- Click the 'Solve Sudoku' button to start
- Follow along with the step-by-step hints to see how each move works
- Learn the techniques our solver uses so you can apply them yourself next time
Why Use a Sudoku Solver?
- Learn solving techniques - See how advanced methods work through step-by-step explanations
- Check your answers - Verify that your solution is correct before you finish
- Get unstuck - Find the next move when you're completely stuck on a puzzle
- Improve your skills - Study how the solver approaches difficult puzzles to become a better solver yourself
Getting the Most from Our Solver
Here are some tips to help you get the most out of our free sudoku solver:
Double-Check Your Input Make sure you've entered all the given numbers correctly. Even one mistake can prevent the solver from finding a solution. Take your time and verify each number before clicking solve.
Follow Sudoku Rules Your puzzle must follow standard sudoku rules—no duplicate numbers in any row, column, or 3×3 box. If your puzzle has duplicates, the solver won't be able to solve it because it's not a valid sudoku puzzle.
Read the Explanations Don't just skip to the answer. The real value is in understanding how the solver approaches the puzzle. Read the step-by-step explanations to learn techniques you can use in future puzzles.
Try our free sudoku solver right now! Enter your puzzle and get a detailed step-by-step solution that will help you become a better solver.