Just Sudoku: Pure Logic

The biggest update yet: 4 game modes, hints that teach real techniques, daily puzzles with streaks, and challenges with up to 8 friends. No ads. Pure logic.

Just Sudoku is a beautifully calm take on the world's favorite logic puzzle. No ads, no clutter, no noise — just you and the numbers.

Every puzzle is generated with exactly one solution, so pure logic is always enough. No guessing, ever.

FOUR WAYS TO PLAY • Classic — the timeless 9×9 grid, from Easy to Legendary • Sudoku X — both diagonals count too • Jigsaw — irregular regions replace the boxes • Killer — cages with target sums for a real challenge

A NEW PUZZLE EVERY DAY Solve the Daily Puzzle everyone gets, build your streak, protect it with streak freezes, and collect monthly medals in the calendar. Missed a day? Play any past puzzle from the archive.

HINTS THAT ACTUALLY TEACH Stuck? The hint doesn't just fill a cell. It highlights the relevant row, column or box, names the technique (Naked Pair, Locked Candidates, X-Wing…) and explains why the move works. Tap again to place the number.

PLAY TOGETHER • Add friends and challenge them head-to-head — or start a group challenge with up to 8 players in any mode • Climb global, country and friends leaderboards • Rise through weekly leagues from Bronze to Diamond • Reach monthly event goals and collect medals

MADE FOR FOCUS • Auto notes keep your pencil marks tidy; long-press to fill all candidates • Zen Mode for pressure-free solving • 18 achievements and rich statistics to track your progress • Elegant light and dark themes, easy on your eyes • Fully playable offline — social features are optional • In 7 languages

Designed for peace of mind. Download Just Sudoku and find your daily calm.