Sudoku SNS is a free offline Android puzzle game with three modes: Classic Sudoku, X-Sudoku, and Jigsaw Sudoku. Five difficulty levels, pencil marks, undo and redo, a countdown challenge, and automatically generated puzzles support both beginners and experienced solvers.
Three Sudoku Variants in One App
Classic mode follows the familiar row, column, and 3-by-3 box rules. X-Sudoku adds diagonal constraints, while Jigsaw replaces regular boxes with irregular regions. Switching modes changes the logical structure of the puzzle without requiring a separate app, giving players more variety as their solving skills develop.
Key App Features
- Classic, X-Sudoku, and Jigsaw puzzle modes
- Five difficulty levels from easy to extremely challenging
- Pencil marks for recording candidate numbers
- Undo and redo controls for correcting steps
- Countdown timer mode for an additional challenge
- Automatic puzzle generation for every level
- Offline play with puzzles checked for a unique solution
Solve at Your Own Pace or Against the Timer
Choose the puzzle type and difficulty, enter definite numbers, and use pencil marks when several candidates remain. Undo or redo lets you revisit a reasoning step without restarting the grid. For a more pressured session, enable the countdown mode; for relaxed practice, play offline without needing an internet connection.
For New Solvers and Experienced Puzzle Fans
Beginners can start with easier Classic puzzles and learn the basic elimination process. More experienced players can move to higher difficulties, diagonal constraints, or irregular Jigsaw regions. Fresh generated puzzles make the app useful for daily logic practice, concentration breaks, commuting, and travel.