← back to Classic Puzzles

Sudoku

9×9 Sudoku with a fresh puzzle every game, three difficulty levels, pencil notes, mistake highlighting, and best times.

Every puzzle has exactly one solution

Puzzles are generated on your device: a full grid is filled at random, then numbers are removed in symmetric pairs while checking the solution stays unique. Easy leaves about 40 numbers, medium 32, and hard 26. The rule: every row, column, and 3×3 box contains 1–9 with no repeats. Your game is saved automatically, so you can continue any time.

tags: #sudoku #number puzzle #logic #brain game

How to install the app

This browser has not offered an automatic install button yet. Install it from the browser menu:

Android (Chrome)
Tap the ⋮ menu at the top right, then choose "Install app" or "Add to Home screen".
iPhone / iPad (Safari)
Tap the Share button (the square with an up arrow), then choose "Add to Home Screen". On iOS this only works in Safari.
Computer (Chrome / Edge)
Click the install icon (a monitor with a down arrow) at the right end of the address bar, or menu ⋮ → "Install Daily Apps".