u8 Games

Find order in a classic nine-by-nine Sudoku grid.

Choose Starter or Standard puzzles, checked for a unique solution. Select a square and enter a number from 1 to 9. See duplicate numbers in a row, column or box highlighted in red.

Erase an entry, undo within the current session or reveal a correct number. Continue your saved puzzle when you reopen the app. Track completed puzzles, including puzzles completed with reveals.

Works offline without an account, ads or in-app purchases. Progress stays on your device and can be cleared in the app. No cloud sync or online leaderboard. The interface is in English.