CLOR SUDKU

A new way to see Sudoku

Sudoku,
without the numbers.

Use nine colors instead of 1–9. Every color appears once in each row, column, and 3×3 box.

Coming to the App Store For iPhone and iPad · iOS 17+
A real Color Sudoku game in progress on Medium difficulty
Actual in-app gameplay

Classic logic, translated

If you know Sudoku, you already know how to play.

  1. RowsAll nine colors, no repeats.
  2. ColumnsAll nine colors, no repeats.
  3. 3×3 boxesAll nine colors, no repeats.

Play your way

Everything useful. Nothing between you and the puzzle.

Choose a challenge, keep track of possibilities, and see your progress—all without an account or connection.

The Color Sudoku menu showing five difficulty levels and a custom game option
Five difficulties + custom gamesStart with Easy or work up to Evil.
A Color Sudoku game with notes mode active for marking possible colors
Notes, hints, and undoExplore the logic without losing your place.
The statistics screen showing locally saved Color Sudoku progress
Progress that stays on your deviceSaved games, settings, and statistics remain local.
Offline by designNo account, backend, ads, or connection required.
How app data works

Color is never the only cue

Built to stay readable.

Turn on distinct symbol overlays so every color has a second identity. Or use the dedicated Contrast palette for color-vision-safe differentiation.

  • Nine distinct symbol shapes
  • Dedicated high-contrast palette
  • Five palettes in total
A live Color Sudoku board where each colored piece also has a distinct symbol
Symbol overlaysShapes reinforce every color.
A live Color Sudoku board using the dedicated contrast palette
Contrast paletteDesigned for clearer differentiation.

Make it yours

Five palettes. Light and dark.

Choose Rainbow, Contrast, Sorbet, Earth, or Vivid. Color Sudoku follows your device appearance and is built for both iPhone and iPad.

Color Sudoku settings showing light and dark appearance, five palettes, and colorblind symbols
Simple, useful controlsAppearance, palette, symbols, and game settings.
Color Sudoku running in dark appearance on Medium difficulty
Dark appearanceThe same puzzle, tuned for a darker screen.
The Color Sudoku victory screen with five stars and colorful characters

The first release

Coming to the App Store.

Color Sudoku is still prelaunch, so there is no public download link yet. This page will point to the official US App Store listing as soon as it is live.

Get support Read the privacy policy