Ensō Sudoku

Classic sudoku, calmly.
Calm logic, never a guess.

Coming soon to the App Store

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Ink-black givens, your digits in indigo, mistakes in vermilion.

A quiet game on paper

Never a guess
Every puzzle has exactly one solution and is solvable by logic alone, Expert included.
Notes, undo, hints
Pencil marks that clean themselves up, unlimited undo and redo, and gentle two-step hints that are free forever.
Calm by design
No lives, no game over, no streaks to protect. A soft scuff of ink when you place a digit and a brushed ensō when you finish.
Yours alone
Fully offline. No account, no ads, no tracking. Puzzles are made on your device and your game never leaves it.

Easy

Medium

Hard

Expert