iOS & iPadOS

Sudoku Moriichi-go ichi-e (一期一会)

Quiet focus.
Zero clutter.

A calm home for every puzzle. Sudoku Mori is handcrafted in Swift and SwiftUI, and built to be picked up for a few quiet minutes at a time.

Join the beta on TestFlightSee the board
  • The Sudoku Mori home screen in the light theme: a classic puzzle picked up at medium difficulty, the daily puzzle, progress against a monthly goal, and the technique lessons.
    Light
  • The same home screen in the dark theme, with the board, difficulty buttons and progress cards on a near-black background.
    Dark

The board

Every number, one tap away.

A 9×9 grid that fills the width it is given, a keypad sized for a thumb, and a row of controls that never moves. Tap a number to place it, or hold it to keep it lit while you scan the grid.

  • A medium daily puzzle in the light theme, with two pencilled cells, the selected square highlighted in blue and 2 locked in the keypad.
    Light
  • The same puzzle and controls in the dark theme, the blue highlight reading brighter against the near-black board.
    Dark

What is inside

Handcrafted in Swift and SwiftUI.

No cross-platform wrapper and no web view. Sudoku Mori is a native game, written for the two devices it runs on.

Nothing in the way

No advertising, no pop-ups and no countdown. Open the app and the puzzle is exactly where you left it.

One-handed controls

Undo, redo, erase, notes and a hint sit under the board, within reach, rather than inside a menu.

Notes that clear themselves

Pencil in candidates and the game takes them back out of the row, column and box as the grid fills in.

Hints that teach

A hint names the technique behind the next move, and the lessons walk through each technique step by step.

Progress without pressure

A daily puzzle, streaks, a monthly goal and a calendar of past results. Kept quietly, never pushed at you.

Private by design

No account to make and nothing to sign up for. Progress stays on your device, and in your own iCloud if you want it there.

Technique lessons

Every technique, explained.

Eight techniques, from a single candidate to X-Wing. Each one opens with a worked example and then three puzzles of its own, so a move can be learnt and used before the next one arrives. Lesson puzzles are kept apart from the daily ones, and any lesson can be revisited.

Read every technique
  • The Learn the techniques sheet in the light theme, listing single candidates, hidden singles, locked candidates, naked and hidden pairs and triples and X-Wing, each with its own count of three puzzles, none of them started yet.
    Light
  • The same list of techniques in the dark theme, each row a card on a near-black background.
    Dark

Puzzle solving should be a meditative daily ritual, not a flashing mobile casino.

The belief the whole game is designed around.

Two ways to play

Take your time, or take the test.

Relaxed mode lets you sit with a puzzle for as long as it takes, with unlimited mistakes and hints that explain the technique you are missing. Challenge mode allows three, and counts both them and your hints beside the clock.

  • The Classic Puzzles sheet with Relaxed selected, and Easy through Master listed with the technique each one needs.
    Relaxed
  • A challenge puzzle with a mistake counter reading 0 of 3 and the hints counter at 0.
    Challenge

The quiet parts

Nothing to interrupt you.

Finishing tells you what it took and nothing more. Progress is a calendar you can ignore: the dates you have solved, a monthly goal to aim at if you want one, and a streak you are free to break.

  • The completion screen: a tick, the line Beautifully done, and a table of mode, time, mistakes and hints used.
    Complete
  • The same completion screen in the dark theme, the table and the New game button on a near-black background.
    Complete · Dark
  • The daily calendar for September, with solved dates ticked in blue, one date part-finished, and a September goal of 8 of 20 dates solved.
    Progress
  • The same calendar and monthly goal in the dark theme, the ticked dates reading brighter against the near-black background.
    Progress · Dark

Elevated workspace

Built for the grand canvas of iPad.

A two-column layout that finally uses the whole screen: the board fills one side and the keypad, notes and hint controls take the other, so the grid is never sitting under your hand. Which side each one takes is yours to choose, and the layout mirrors to match.

  • Sudoku Mori on iPad in the light theme and landscape, set up left-handed: the keypad, undo, redo, notes and hint controls in the left column and the board filling the right.
    Left-handed · Light
  • The same left-handed iPad layout in the dark theme, board and controls on a near-black background.
    Left-handed · Dark
  • The right-handed iPad layout in the light theme, the board on the left and the keypad, undo, redo, notes and hint controls in the right column.
    Right-handed · Light
  • The right-handed iPad layout in the dark theme, board and controls on a near-black background.
    Right-handed · Dark

Our principles

Respect for your attention.

Zero distractions

Nothing blinks, moves or asks for attention while you are thinking.

Native, not wrapped

Swift and SwiftUI throughout, so it behaves like the rest of the system.

Yours to keep

It plays with no connection at all, on a train or on a plane.

Comfortable to read

Text follows your system size, contrast can be raised and haptics can be turned off.

Take a quiet moment today.

Sudoku Mori is in beta now, and on its way to the App Store for iPhone and iPad.

Join the beta on TestFlightWhat the beta includes