Free online sudoku, three new ones every day

The daily sudoku

Every day, at midnight by your phone's clock, three new sudoku arrive: one easy, one medium and one hard. They're the same for everyone, so when you finish you see how many of that day's players were slower than you. If you solve at least one a day, your streak grows. Missed a day? The puzzles from past days stay in the past dailies.

Play the way you like

You don't need to sign up: open the page and play. You can write pencil notes, undo moves and pause. Games save themselves, even without a connection, and you can install Sudokumania on your phone's Home Screen like an app. If you want to play on more than one device, link your email. Prefer paper? There are also printable sudoku, with solutions.

Real sudoku, solved with logic

Every Sudokumania puzzle has exactly one solution and is solved by reasoning, never by guessing. The levels aren't picked by eye: our solver tries every puzzle and rates it by the techniques that are actually needed to finish it. Want to learn them? Start with the beginners' guide and go on with the other guides.