Need help solving that tricky Sudoku puzzle in your newspaper or favorite puzzle book? Just input your puzzle into this free solver and the solution will appear faster than you can write out the answer. This app can also be used to generate puzzles simply by entering a few key digits, hitting solve, then removing some cells for your unsuspecting user. Note that after solving a puzzle, you may modify your original input by continuing to add new values to existing cells. Entering 0 or simply clicking from cell to cell will blank any existing cell.