Fill the 9×9 grid so that every row, column and 3×3 box contains the digits 1 to 9 exactly once. Every puzzle here is generated with exactly one solution, so you never have to guess. Choose Easy, Medium or Hard (40, 33 or 27 digits given) and start.
Hints that teach you
Press Hint and the game explains the next logical step instead of just filling a cell. It finds naked singles (a cell with only one candidate left) and hidden singles (a digit with only one place left in a row, column or box), highlights where to look and tells you why. Press it again to place the digit. If you have entered a wrong digit, it tells you that first.
Features
Pencil notes, plus Auto notes to fill every empty cell with its candidates.
Undo, pause (the board is hidden while paused), a timer and your best time per difficulty.
A mistake counter and instant red highlighting of conflicting digits.
A daily puzzle (Medium) that is the same for everyone on a given date, with a streak counter.
Shareable puzzle codes: a short code such as MFZR regenerates the same grid so you can compare times with a friend.
Keyboard controls: 1–9 place, N notes, Backspace erase, H hint, P pause, arrows move, Ctrl+Z undo. Progress is saved automatically.
Questions
Are the puzzles always solvable?
Yes. The generator removes digits one at a time and keeps only grids that still have a single valid solution.
When does the daily puzzle change?
Once a day, by your local date. Everyone gets the same grid for that date.
Is my progress saved?
Yes, in your browser. Nothing is sent anywhere unless you choose to post your time to the daily leaderboard, and you do not need an account.
Sudoku oyna – ücretsiz, mantık ipuçlu
Kolay, Orta ve Zor seviyelerde ücretsiz Sudoku. Her bulmacanın tek bir çözümü vardır, tahmin gerekmez. Hint düğmesi bir sonraki mantıksal adımı nedeniyle birlikte açıklar; ayrıca kurşun kalem notları, geri alma, günlük bulmaca ve paylaşılabilir bulmaca kodları vardır.