Sudoku Offline - Classic

Classic 9x9 sudoku that never needs a signal. Four difficulties, a fresh puzzle every day, pencil notes that clean themselves, and every board has exactly one solution.

Solve the grid. Calm your mind.

Sudoku Offline is the classic 9x9 number puzzle, built to be clean, fair and playable with no connection at all. Fill every row, column and 3x3 box with the digits 1 to 9. Seconds to learn, years to exhaust.

WHY YOU WILL STAY

• Four difficulties, Easy through Expert, with 120 puzzles built for each one, 480 in total
• Every puzzle has exactly one solution, checked by our own solver, so a board is never ambiguous and never a guess
• A fresh Daily Challenge for every date, with a calendar and a streak to keep
• Pencil notes with auto-clear: place a digit and it vanishes from the notes of every cell that can no longer hold it
• Assists you control: highlight the selected row, column and box, glow matching numbers, and see how many of each digit are left
• Fully offline: a plane, the subway, a basement, a long drive
• 10 skins to earn: paper and slate are free from the start, and sepia, midnight, mint, sky, rose, forest, lavender and sand unlock as you clear levels
• Gentle haptics and a quiet sound set that stays out of the way

MADE TO BE FAIR No timer pressure: the clock is there if you want to race it and hides completely if you do not. A mistake limit keeps you honest by default, and you can switch it off in Settings when you would rather just relax. Your first hint on every puzzle is free, so you are never stuck with nowhere to go.

PLAY YOUR WAY Levels mode is an endless run through Easy, Medium, Hard and Expert, one puzzle after the next. Daily Challenge is a single puzzle for today's date, generated on your device rather than fetched, so it opens with no signal. Miss a day and the streak resets, but the calendar keeps every day you finished.

ONE PURCHASE, NO MORE ADS Sudoku Offline is free to play and supported by ads between puzzles. A single Remove Ads purchase turns them off for good, with no subscription. It unlocks no content, because every mode, difficulty and skin is already reachable by playing.

Play in 33 languages. Your progress stays on your device.

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