Fill the 9×9 grid so that every row, every column, and each of the nine 3×3 boxes contains the digits 1 through 9 — with no repeats.
Fill a cell. Tap an empty cell on the board, then tap a number on the numpad below to fill it in.
Notes. Turn on Notes to pencil in candidate numbers for a cell instead of committing to one — handy while you're narrowing down possibilities.
Hint. Stuck? Use a Hint to reveal a cell. Each puzzle gives you a limited number, so save them for when you really need them.
You can make up to 5 mistakes in a puzzle. Go over that, and the game ends — so double-check before you tap.
Start with rows, columns, or 3×3 boxes that already have the most numbers filled in — they're the fastest to solve. Use Notes to track which numbers could go where, and look for cells where only one number is possible. For the full set of solving techniques, see the Strategy Guide.
Ready to play? Start a puzzle →