Sudoku

A little focus. One number at a time.

Play Sudoku

Settle into a good puzzle

Fill the spaces, follow the clues, and take your time.

How to play

Today’s puzzle

Make a little time for your daily challenge.

Play today’s puzzle

Play with a friend

The same puzzle. A friendly race to the finish.

Start a Sudoku race

More to explore

Popular puzzles, your saved favorites, and a little help.

Popular puzzles

Discover the puzzles other players are enjoying.

Explore popular puzzles

Sudoku Walkthrough

Work through a puzzle, one number at a time.

View walkthrough

Favorites

Revisit the puzzles you love.

See favorites

Bookmarks

Find the puzzles you saved for later.

See bookmarks

Sudoku Help

Rules, techniques, and helpful answers.

Get help

About Sudoku

Sudoku is a 9x9 number puzzle. Fill empty cells so every row, column, and 3x3 box contains the digits 1 through 9 exactly once.

Choose a new puzzle, try Daily Sudoku, race a friend live in Sudoku Race, or browse popular boards. You can play at your own pace with pencil marks and simple controls.

Quick links: Start a puzzle | Daily Sudoku | Sudoku Race | How to play | FAQ | Popular puzzles

Pro Tip: Use pencil marks to plan ahead!