Classic sudoku for beginners and advanced players. Whether you'd like to relax or keep your mind active – pass the time in a pleasant way! Get a short stimulating break or clear your head with Sudoku.com. Take your favorite game with you wherever you go. Playing Sudoku.com on mobile is as good as with a pencil and paper.

Choose any level you like. Play easier levels to challenge your brain, or try expert levels to give your mind a real workout. Sudoku.com has some features that make the game easier for you: hints, auto-check, and highlight duplicates. You can use them, or complete the challenge without help – it's up to you! What's more, in Sudoku.com each puzzle has one solution.

Get an amazing sudoku experience:

· Complete Daily Challenges and get unique trophies
· Challenge yourself and figure out your mistakes, or enable Auto-Check to see your mistakes as you go
· Make notes to keep track of possible numbers. Each time you fill in a cell, your notes are automatically updated!
· Choose one of three appearances to play sudoku more comfortably, even in the dark!
· Highlight duplicates to avoid repeating numbers in a row, column and block
· Hints can guide you when you get stuck
· Express yourself with funny ninja stickers for iMessage!

Challenge your brain with Sudoku.com anywhere, anytime!