Sudoku Generator: Easy, Medium and Hard Puzzles

Pick easy, medium or hard and a brand new puzzle is generated on the spot; every puzzle is verified to have exactly one valid solution before it is shown.

Play directly in the grid — tap a blank cell and type or tap a digit — and any number that clashes with its row, column or 3x3 box is highlighted instantly.

You can reveal the full solution at any time, copy the grid as text, or use the print button to get a clean paper copy for solving offline.