How to Play

1. Fill in the 9×9 grid so every row, column, and 3×3 box contains the digits 1–9 exactly once.
2. Click a cell, then tap a number on the pad (or press 1–9 on your keyboard).
3. Use Notes mode to pencil in candidates — tap ✏ Notes to toggle.
4. Tap ✓ Check to highlight any errors in red.
5. A new puzzle drops every day at midnight. Come back to see the previous day's solution alongside it.