Fill the 9×9 grid so every row, column and 3×3 box contains the digits 1–9 exactly once. Endless puzzles with hints, notes and error checking.
Easy, Medium, Hard and Expert — endless freshly generated boards.
Toggle pencil mode to jot down candidate numbers in each cell.
Stuck? The hint button reveals one correct cell.
Validate your answer and track mistakes in real time.
Try 2048, Minesweeper, Gomoku and more from the Fun & Games collection.
Play 2048