About PlaySudoku
Free online Sudoku you can play in your browser — plus a full library of solving techniques.
What is PlaySudoku?
PlaySudoku (playsudoku.top) is a free online Sudoku site built for players who want both casual puzzles and real skill growth. Open the site, start a game, and solve without installing software or creating an account.
Alongside the playable app, we publish 38 technique tutorials covering beginner fundamentals through advanced patterns — the same curriculum used by Sudoku Coach.
Play in the browser
No download required. Use Play Online on desktop or mobile browsers. Progress is stored on your device so you can pick up where you left off.
Learn techniques
Prefer a structured path? Start with How to Play, then browse the Techniques index for lessons from Naked Single to expert chains.