Sudoku

ZeroSpace Games presents Sudoku, now available online with no pencil or paper required. Click a number, then click an empty box to place it. Your goal is to fill the entire grid so that every row, column, and 3x3 square contains the digits 1 through 9 exactly once.

No repeats allowed. That is the only rule.

Think your Sudoku skills are up to the challenge? This game welcomes everyone, from beginners picking up their first puzzle to advanced players who crave a real mental workout. If you enjoy easy puzzles for a relaxing break, you will find plenty of gentle fun here.

If you prefer to push your brain hard with tough logic problems, this classic game has you covered too.

Choose your preferred difficulty from the menu. Start with Easy mode to warm up your memory and logic. Then move up through Hard, Very Hard, and even Insane modes when you want a true test.

Whether you have five minutes to spare or want to settle in for a longer session, this free Sudoku game offers a pleasant escape. Pick your level and start solving.