Reasoned Sudoku

Classic 9×9 Sudoku for unhurried play: a little logic, a moment to yourself. When you’re stuck, a hint doesn’t just fill in a number. It shows you where to look, explains why, and then lets you make the move yourself.

What’s inside

• 800 puzzles, each checked to have exactly one solution, across Easy, Medium, Hard and Expert.
• Daily puzzles: a fresh board for each difficulty every day, the same for everyone who plays that day.
• Hints that teach: where to look, the reason, then the move. They cover singles, locked candidates and pairs.
• Notes your way: pencil marks, swipe across cells to mark a whole group at once, and optional Auto candidates.
• Undo, erase and pause, with every move saved instantly. Close the app mid-game and pick up exactly where you left off.
• Fully offline, with no account, no ads and nothing to download after you install. Light and dark mode.