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Tap the "Play" tab, then choose your preferred difficulty level (Easy, Medium, Hard, or Expert). You can also try the Daily Challenge for a fresh puzzle every day.
During gameplay, tap the lightbulb icon to reveal the correct number for a random empty cell. You have 3 hints per game. You can disable hints in Settings if you prefer a harder challenge.
Tap the "Notes" button to switch to note-taking mode. In this mode, tapping a number will add a small pencil mark to the selected cell, helping you keep track of possible values.
You can make up to 3 errors per game. After the 3rd incorrect number, the game ends. Error highlighting can be turned on or off in Settings.
Yes. Go to the "Settings" tab and tap "Reset All Data" at the bottom. This will permanently delete all your game records and cannot be undone.
The Daily Challenge is a specially generated hard-difficulty puzzle that refreshes every day. Complete it to maintain your daily streak!
Currently, game data is stored locally on your device only. If you switch devices or reinstall the app, your statistics will reset. Cloud sync may be added in a future update.
No. SudokuMaster works entirely offline. No internet connection is needed to play.