# Sudoku.so

> A free, ad-free Sudoku game that helps people play and learn Sudoku.

Use the Markdown links below for clean, authoritative page content. Localized versions use the same URL pattern under their language code.

## Main page

- [Sudoku.so](https://www.sudoku.so/en/index.md): Play Sudoku and learn about the game.

## English content

- [About sudoku.so](https://www.sudoku.so/en/about-sudoku-so.md): Learn more about our site called sudoku.so and how and why it exists. 
- [How to Play Sudoku](https://www.sudoku.so/en/blog/how-to-play-sudoku.md): A simple guide on how to play Sudoku
- [The Cognitive Benefits of Sudoku: A Deeper Look into its Brain-Boosting Potential](https://www.sudoku.so/en/blog/cognitive-benefits-of-sudoku.md): Will Sudoku make you smarter? The benefits of regularly playing sudoku are many.
- [Common Techniques for Solving Sudoku](https://www.sudoku.so/en/blog/common-techniques-for-solving-sudoku.md): These techniques will greatly help you solve Sudokus in no time, no matter difficulty level.
- [A smoother, more personal experience](https://www.sudoku.so/changelog/003-a-smoother-more-personal-experience.md): Navigation now works better across screen sizes, leaving a game is quicker, and the site follows your device's appearance.
- [Your games, right where you left them](https://www.sudoku.so/changelog/001-your-games-right-where-you-left-them.md): Accounts now keep track of your active and completed games, with easier ways to return and improved account recovery.
- [Clearer words throughout the game](https://www.sudoku.so/changelog/004-clearer-words-throughout-the-game.md): English interface text is now more consistent across the game, navigation, and supporting pages, with clearer labels and prompts.
- [Replay every move](https://www.sudoku.so/changelog/002-replay-every-move.md): Signed-in players can now undo and redo their current moves, then revisit every step after finishing a game.
- [Printable Sudoku Puzzles · Sudoku.so](https://www.sudoku.so/en/print.md): Create, download, and print free sudoku packs with optional solutions, A4 or US Letter paper, and one, two, or four puzzles per page.
- [Today’s Sudoku — One puzzle for everyone](https://www.sudoku.so/en/todays-sudoku.md): Play today’s shared Sudoku.so puzzle, compete on time, and compare your result with players around the world.