- First public release for Android.
Sudoku Four
Sudoku with four difficulty levels.
Screenshots
Tap any screen to enlargeAbout Sudoku Four
Sudoku Four is a Sudoku game. Every game saves automatically, and four difficulty levels change how much logic the board requires.
A five-digit puzzle number reproduces any board, and the history screen keeps every game you start.
Features
- Four difficulty levels, from 40 clues on Easy to 25 on Expert
- Logic rating based on the techniques needed to solve the board
- 4,000 boards, 1,000 per level
- Five-digit puzzle number to replay an exact puzzle
- Several games in progress, each saved separately
- Pencil notes, hints, a mistake counter and 200-step undo
- History and records for each level
- Sound, haptics and a timer that pauses in the background
- Portrait layout
Four difficulty levels
| Level | Clues | Solutions | Hardest logic |
|---|---|---|---|
| Easy | 40 | 2 | Naked singles |
| Medium | 34 | 2 | Hidden singles |
| Hard | 29 | 1 | Pairs and triples |
| Expert | 25 | 1 | Advanced patterns |
Saving and hints
Every board is saved after each move. Closing the app does not lose the board.
Check scans your entries, marks mistakes, and spends a hint only when it finds one. A hint or a failed check is permanent.
Easy and Medium have two valid solutions, so either completed grid wins.
Install on Android
This build is not available to download right now. Check back later for a new release.
Privacy
It contains no ads.