Dimmed digits
Select a cell and the digits already in its row, column or box fade. It’s a cue, not a lock — and it never peeks at the solution.
All apps
Coming soon to Google Play
InOneClick Sudoku
Classic sudoku where logic wins, not trial and error.
No more scanning rows by eye: digits that already sit in the row, column or box of the selected cell are dimmed. The app does the mechanical checking — you do the reasoning.
- Android 7.0+
- 7 languages
- Works offline
534672198
67195
6
847
68532
316
9673
4198
28579
123456789
Tap a cell: digits already in its row, column or box fade out.
Features
Sudoku that respects your reasoning
Everything that helps you think, nothing that thinks for you.
One solution, always
Every puzzle is checked to have exactly one solution before you see it.
Logic, not luck
Difficulty is set by the hardest technique a puzzle needs. Every level is solvable without guessing.
Four levels
Easy, Medium, Hard and Expert — from naked singles to swordfish.
Daily puzzle
A fresh puzzle every day, with the level changing in rotation.
Notes, undo & redo
Pencil in candidates and step back or forward through your moves.
Statistics & streaks
Games solved, best times and streaks for every level.
Dark & light themes
A calm palette tuned for long sessions, day or night.
Screenshots
Straight from the phone
Dimmed digits 
Light theme 
Matching digits highlighted 
Settings
Privacy
Your games stay on your phone
- Your puzzles, statistics and settings are stored only on your device.
- No accounts, no sign-in and no analytics of our own.
- Ads are served by Google AdMob; in the EEA, the UK and Switzerland the game asks for your consent first.
Support
Questions or ideas?
Write to the app team — bug reports and suggestions are welcome.
contact@inoneclick.eu