Online Sudoku Solver
Use this Sudoku solver to check or complete your puzzle online. Enter the clues from the grid, then select Solve Sudoku to fill the remaining cells.
How to use this Sudoku solver
Enter the given numbers row by row, leave unknown cells blank, and solve the grid when you want to check the full answer or confirm that a puzzle is valid. This page uses the standard Sudoku layout with digits 1 to 9.
Need a different Sudoku page?
Play a fresh 9x9 Sudoku puzzle, switch to the smaller 4x4 Sudoku solver, or open the larger 16x16 Sudoku solver.