Square OnePlay free Sudoku online
A fresh daily puzzle. No ads. No account.
A little logic, every day
Your daily Sudoku, wherever you are.
Take a quiet break with a free online Sudoku puzzle. Each day brings a new medium puzzle, ready to play in your browser on a phone, tablet or computer. Use pencil marks to keep track of possibilities, undo a move, or check your progress when you need a second look.
Your progress is saved in this browser, so you can come back to today’s puzzle later on the same device.
How do you play Sudoku?
Fill the 9×9 grid so that every row, column and 3×3 box contains the numbers 1–9 exactly once. The starting clues stay fixed. No arithmetic is needed—just logic.
Learn the Sudoku rules and solving techniques →Can I play more Sudoku offline?
Get the free Square One app for iPhone, iPad or Android. Play unlimited offline puzzles at four difficulty levels, and keep track of your streaks and stats.
Get the Sudoku app for iOS and Android →What if I get stuck?
Start with a nearly complete row, column or box. Use Notes to mark possible numbers, then look for a square with only one candidate left.
Try four Sudoku solving techniques →