GridHearth Game
Sudoku you can play online
Play 27 free puzzles—nine each at Easy, Medium, and Hard. Your progress saves in this browser, and optional logical hints explain the next move. Our guide teaches the techniques used across the levels.
About
One home for books and games
GridHearth makes Sudoku you can play online and on paper. GridHearth Press publishes our books under the author name GridHearth Puzzles.
GridHearth Press
Sudoku Practice books
The paperback series includes Easy, Medium, Hard, and Mixed Sudoku practice. GridHearth Puzzles is the author name on these books; availability is shown on each book's detail page.