How to play
Fill the grid so that every row, every column and every 3×3 box contains the numbers 1 to 9 exactly once.
- Tap a square, then tap a number (or type it on your keyboard).
- Turn on Notes to pencil in small candidate numbers.
- Numbers that clash with another in the same row, column or box turn red.
- Hint fills in the selected square. Each puzzle has exactly one solution.
Easy on Monday and Tuesday, Medium midweek and Sunday, Hard on Friday and Saturday.
A new puzzle appears every day at midnight. Solve it daily to build your streak.