Choose a difficulty
Easy, Medium, Hard and Expert each provide 75 immediately accessible grids.
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Puzzle · Logic
Sudoku
Three hundred validated grids, four difficulties, free play and a daily challenge with a streak — all kept locally.
overview
Classic grids and a daily challenge
Sudoku is a native Android app centered on a clear grid, immediate gestures and lasting progression. Free mode opens the entire catalogue; Challenge mode offers one stable grid each day, a chosen level and a streak to maintain, with a three-error limit.
Availability
Mobile distribution to come
Sudoku is not offered as a download on this website. Distribution details will be added here once they have been decided.
At a glance
At a glance
Android
8.0+
Puzzles
300
Difficulties
4
Modes
Free · Challenge
Storage
Local
What's in it
What's in it
- F—01 300 bundled grids: 75 per difficulty
- F—02 Free mode and daily Challenge with current and best streaks
- F—03 3×3 notes, undo, redo, erase and restart
- F—04 Row, column, block, matching-number and conflict highlights
- F—05 Timer, pause, resume, statistics and best times
- F—06 Progress, games and challenge history stored locally
Two rhythms
Free to progress, Challenge to return.
The bundled catalogue guarantees stable, controlled puzzles. Players can progress at their own pace or return to a daily appointment on their device.
Reason with just enough help
Notes, highlights and counters support reading without solving the puzzle for the player.
Return to the daily challenge
One deterministic grid per date feeds the streak; Saturdays raise the difficulty when possible.
Measure progress
Times, results, streaks and mode-specific statistics remain available offline.
Screens
Screens
Data
All progress stays local.
The puzzles are bundled and the app declares no network permission. Games, notes, streaks and statistics are saved on the device.
- P—01 No account or remote service required
- P—02 Entire catalogue playable offline
- P—03 Progress data remains under device control
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