Play Sudoku
Fresh puzzles, classic fun—choose your challenge!
Optimized to play equally well on any device: Phone • Tablet • PC.
Live friend-vs-friend Sudoku.
Race a friend live on the same Sudoku puzzle
Create a private link, meet in the lobby, and race head-to-head on the same puzzle.
Private inviteFair by designFirst correct finish wins
Play a New GameStart a fresh puzzle from the curated server pool.Daily PuzzleA new challenge every day. Can you keep your streak?Sudoku RaceChallenge a friend live and solve the same puzzle head-to-head.Popular PuzzlesSee what everyone else is playing.How to PlayLearn Sudoku rules and pro tips.Sudoku HelpRules, tips, and FAQs.
Customize the look with themes and styles - choose board styles and contrast.
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 fresh 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!