A NEW AND FUN TWIST ON SUDOKU

Do you like to use your noggin? Do you like logic puzzles? Then you'll love Ishidoku. Ishidoku challenges your deductive reasoning skills. You won't be able to guess your way through this game.

NO NEED FOR COMPLICATED METHODS

Ishidoku differs slightly from regular sudoku in that there is no guesswork. The puzzles are designed to be solved purely by deductive reasoning, so you won't need to make pencil marks or use complicated methods. All the clues are there; it's up to you to find them.

LIKE JIGSAW SUDOKUS? WE HAVE 600 DIFFERENT JIGSAW LAYOUTS!

Ishidoku is fun for beginners and experts alike. We have regular and jigsaw sudokus in sizes 6×6, 7×7, 8×8, and 9×9, with over 600 different grid shapes. With difficulty levels from easy to hard and over 20,000 unique and original puzzles to choose from, there's something for everyone.

YOU DON'T HAVE TO BE A SUDOKU EXPERT

So if you haven't tried sudoku before, this is a great way to learn. Hours of fun for all ages.