About this Sudoku Solver
This solver offers a number of features to help you improve your solving skills and practice solving
strategies. For more detailed help on the available features, click on the relevant info icon in the features
block on the right hand side of the grid.
Enter the numbers of the puzzle you want to solve in the grid.
You can solve the puzzle completely, partially or solve a single cell using the buttons in the Solving section
of the Features block.
The solver provides several analysis features which allow you to check if a puzzle is valid, rate the difficulty
of a puzzle or get hints on how to solve a puzzle step by step.
Thousands of free puzzles in varying grades of difficulty are available. Just click on the relevant
sample button on the right hand side to load a puzzle of that difficulty to the grid.