Twenty-one hand-picked places to play Sudoku β filter by style or search by name. Every link opens the original site (or our intro page first).
Murder mystery meets Sudoku. Place suspects by row and column from the clues and unmask the killer. New free puzzles weekly.
PopularThe daily deduction-grid murder mystery by G. T. Karber. Suspects, weapons, locations and clues β one new case every day.
A daily natural-language logic puzzle: work out who's a criminal from clues the suspects give. No guessing β always a logical next step.
The biggest classic Sudoku destination β clean interface, four difficulties, a daily challenge and a polished mobile app.
The long-running original. Billions of puzzles, four levels, print-friendly β a no-frills classic that just works.
Hit play and you're in β instant free classic Sudoku for a quick break, across every difficulty.
Classic and multiplayer Sudoku with live rooms and difficulties from easy to evil β play with others in real time.
A new hand-made puzzle every day, online or printable, with archives and a built-in solver for when you're stuck.
Six fresh daily puzzles plus genuinely good tutorials and technique walkthroughs β great for leveling up.
The New York Times' daily Sudoku in easy, medium and hard β part of the gold-standard NYT Games stable.
The Washington Post's free Daily Sudoku β a fresh classic grid every day, no account required.
The Guardian's daily Sudoku series, including harder and killer editions β interactive and printable.
Sudoku.com's killer mode β no givens, just caged sums. Daily killer puzzles from easy all the way to expert.
Variant hubThe app Cracking the Cryptic uses on-screen. Play killer, sandwich, thermo, arrow and dozens more shared variant puzzles.
The home of the world's most famous Sudoku channel β a vast library of hand-picked variant puzzles and solves.
A powerful in-browser setter for building and sharing your own variant Sudoku β the constructor's favorite tool.
Andrew Stuart's solver that shows the logic strategy by strategy β the deepest free library of solving techniques online.
A dedicated Killer Sudoku solver that walks the cage logic square by square β handy when a killer grid has you stuck.
The Japanese publisher that named Sudoku and still hand-crafts puzzles. The historical heart of the genre.
The supplier behind countless newspaper and app puzzles, with a big catalog of Sudoku and logic-puzzle variants to play.
Free online Sudoku with rankings, timers and a huge archive β for players who like to compete on the clock.