New · iOS & Android · Free with optional ads
Pencil & paper, reimagined.
A quiet, focused Sudoku for the modern phone. Five modes, a daily handcrafted puzzle, a built-in strategies playbook — without the noise.
A quiet, focused Sudoku for the modern phone. Five modes, a daily handcrafted puzzle, a built-in strategies playbook — without the noise.
Scroll through the app at a glance. Every screen is designed around the same principle — calm by default, configurable when you want it.
One handcrafted puzzle every day. Streaks, stats, a rotating weekly featured series — and absolutely no 9pm push notifications. Skip a day if you want. The grid will wait.
The home screen surfaces what's on right now — the daily puzzle, this week's featured event series, your stats, and a one-tap path back to your last game.
Four difficulties from Easy through Expert. Smart pencil notes auto-remove when you place a value. Mistake tracking with three strikes, or unlimited if that's not your thing.
Most apps give you a hint by filling in a cell. We show you the technique — which cells to look at, why this digit is forced, what to scan for next time.
Highlights the row, column and box that prove the next move. Each hint walks you through the reasoning. After a few you'll start spotting the patterns on your own.
From Hidden Singles to Naked Pairs to X-Wings — every Sudoku technique is documented, ranked by difficulty, and illustrated with worked examples. Learn one a week, become unstoppable.
The grid waits.Sudoku Nova · Our design philosophy
It doesn't nag.
When classic Sudoku isn't quite right, try a variant. Same calm presentation, different brain workout.
The 9×9 puzzle you know and love.
Cages with sum clues. Sharper deduction.
Fill cells so every run hits its sum. Kakuro vibes.
Pair cells whose numbers add up to the target.
Sudoku where clues show the square of the answer.
No starting numbers — just dotted regions with target sums. Each cage must hit its sum, with no repeats. Pure deduction from a blank canvas. Hard mode is where this variant shines.
Make the target by pairing cells. A brisk warm-up or a serious sprint — your call. The fastest of the variants, perfect for queue time.
The Explore tab keeps the menu of variants one tap away. Try a different mode on a coffee break. The same elegant board logic underneath, every time.
Rotating challenges across every mode. Pro Series, Killer Instinct, Speed Match — a fresh lineup every Sunday. Stack up awards. Or play offline. Nothing forced.
No streak-shaming. No reminders. Just a small, quiet thing to come back to when you want it.