Sudoku: Offline Number Puzzle

Sudoku: Offline Number Puzzle is a clean, classic sudoku game built for people who just want to play. No clutter, no account, no internet required.

Every puzzle is verified to have exactly one solution and to be solvable by pure logic — you will never need to guess.

FOUR REAL DIFFICULTY LEVELS
Easy, Medium, Hard and Expert. Difficulty is graded by the solving techniques each puzzle actually requires, not by how many numbers are filled in. Easy puzzles need only simple scanning. Expert puzzles will genuinely test you.

DAILY CHALLENGE
A new puzzle every day, the same one for everyone. Build a streak by playing each day and track your progress on the calendar.

BUILT FOR COMFORTABLE PLAY
- Pencil marks for jotting down candidates
- Unlimited undo, always free
- Highlighting for the selected row, column and box
- Matching numbers highlighted across the board
- Remaining count shown under every digit
- Mistake check whenever you want it
- Hints that reveal a cell you could have worked out yourself

TRACK YOUR PROGRESS
Best times and win rates for every difficulty, total puzzles solved, and your current and longest streaks.

PLAYS ANYWHERE
Fully offline. On a flight, on the metro, anywhere with no signal — every puzzle works.

Your progress saves automatically, so you can put a puzzle down mid-solve and pick it up later exactly where you left off.

Whether you play sudoku every morning with coffee or you are picking it up for the first time, this is a calm, well-made place to do it.