Zen Sudoku

Play Zen Sudoku online for free. A relaxing sudoku with a new Daily Challenge in three difficulties and a worldwide best-times leaderboard – no download needed.
A Calm Sudoku, Every Single Day
Zen Sudoku is classic sudoku at its best: fill the grid so every row, column and 3×3 box contains the numbers 1 to 9 exactly once. Tap a cell, pick a number, and use notes mode for little pencil marks while you reason your way through. Every puzzle is generated with exactly one solution, so pure logic is always enough – no guessing required. There is no pressure and no game over: just you, the grid and a quiet moment of focus.

The Daily Challenge – Three Difficulties

Every day three brand new sudokus are released: easy, medium and hard. And here is the special part: every player in the world gets exactly the same three puzzles. Solve any of them to keep your daily streak alive, shown as a flame in the game. Complete all three for the perfect day. Miss a day and your streak resets, so true sudoku fans come back every morning.

Best Times and the Worldwide Leaderboard

Your time is your score. Finish a puzzle and submit your time with your name to the worldwide leaderboard, then see instantly where you rank. The game shows the Top 10 of today and the all-time Top 10, and every mistake or hint adds 30 seconds to your final time – so careful, focused solving beats reckless speed. The daily Top 10 starts empty every morning: a fresh chance at the number one spot, every day.

Helpful Tools, Zero Pressure

Zen Sudoku gives you everything a sudoku lover expects: pencil notes, undo, smart highlighting of rows, columns and matching numbers, a counter for every digit, and three hints per puzzle for when you are truly stuck. Leave halfway through and the game saves your progress automatically – next time you continue exactly where you stopped.

Play in Your Own Language

Zen Sudoku speaks your language. Switch between English, Dutch, German, French, Spanish, Italian and Polish with the language button – your choice is remembered for your next visit.

Why Zen Sudoku?

Whether you are learning the ropes on easy, sharpening your logic on medium or racing the world’s best on hard, Zen Sudoku is free to play online, works beautifully on desktop, tablet and mobile, and is the perfect way to unwind while keeping your mind sharp. Today’s three puzzles are ready – can you set the fastest time?