Three little challenges. One good daily habit. New puzzles at midnight UTC.
A fresh daily set is ready.
Choose an empty square, then a number. You’ve got this.
Keyboard friendly 1–9 numbers N notes ⌫ erase ← ↑ ↓ → move
Classic Sudoku rules Fill every row, column and 3×3 box with the digits 1–9, using each digit exactly once. The given numbers stay fixed. Start with an empty square and check all three groups.
There are three daily boards: easy, medium and hard. Each board stays the same throughout its UTC day. Complete any one of them to add that date to your daily streak. Solve the others for more practice, or share a link so a friend can try the exact same board.
The daily set changes at 00:00 UTC. The date shown above the board is the puzzle date, which may differ from your local date. An unfinished board stays saved in this browser when a new day arrives. A shared daily link can open an earlier date without replacing today’s puzzle.
Pause whenever you need to. Time spent in a hidden tab or with the board paused does not count toward your solve time. Your streak follows the UTC dates you complete; practice games and replaying an already completed daily board do not add another day.