Sudoku - 123456789

Beautiful, simple Sudoku. Pure puzzle. Quests, daily challenges & number styles.

Sudoku — Beautiful, Simple, Pure Puzzle

Sudoku that stays true to the puzzle: clear, calm, and endlessly playable.

Draw numbers by hand

Solve on a paper-like grid. Write numbers with your finger or stylus for a natural, tactile experience.

Infinite combinations

Mix difficulty, themes, fonts, and drawing styles. Every session can look and feel different.

Simple, beautiful themes

Choose from many visual themes-from soft pastels to bold contrasts-to match your mood.

Quests & daily challenges

Follow quests, unlock new number sets, and enjoy daily puzzles for ongoing variety. Feeling spontaneous? Tap I'm Feeling Lucky for a random puzzle anytime.

Fine-tuned customization

Adjust font face, weight, size, and rough drawing style so the grid feels exactly right for you.

World numbers

Play with numeral styles from around the world-dice, Braille, Roman, hieroglyphs, and more-for a fresh take on classic Sudoku.

From kids to master

Start with Mini grids and work up to extreme 9x9 puzzles. Use unlimited hints when you need them.

E-reader support

Optimized for e-reader displays and low-spec devices. Play comfortably on e-ink screens and older hardware.

Offline & travel-friendly

Play anywhere. No internet required-perfect for flights, commutes, and trips.

Legal & Support

These documents are provided for transparency. They are not personalized legal advice; have them reviewed by counsel if needed.