Daily challenge
A new Sudoku puzzle every day
Everyone plays the same board each day, so your time is a fair fight. The difficulty rotates through Easy, Medium, Hard, and Expert across the week, and the puzzle is minted the same way for every player.
Same puzzle for all
The board is derived from the calendar date, so you and everyone else solve exactly the same grid today.
Daily ranking
Post your solve time to the daily leaderboard and see how you stack up against players around the world.
Build a streak
Come back each day to keep your solving streak alive. Consistency beats speed over a week.
Shareable seed
Every puzzle has a shareable link, so you can challenge a friend to the exact same board and compare times.
How the daily works
Each day's puzzle and its difficulty are derived from the date itself, using the same rule on your device and on our servers. That means the daily challenge loads instantly and stays fully playable offline, while ranked times are still verified server-side to keep the leaderboard honest.
Because the derivation is deterministic, there is nothing to download and no waiting for a puzzle to appear at midnight. Open the app and today's board is already there.