Play Sudoku 9x9 Online Free

About This Game

Sudoku 9x9 is the purest form of the world's favorite logic puzzle, with nothing between you and the grid. Fill each row, column and 3x3 box with the digits one through nine — no repeats, no arithmetic, no luck. Three difficulty levels let the same game serve a curious beginner and a jaded expert, and hints are available when a puzzle has you genuinely cornered rather than merely thinking. The interface is fast and uncluttered, so the only thing loading is your next deduction. A dependable, distraction-free five minutes whenever you need one. Free to play in any browser, on phone or desktop.

How to Play

Complete the grid so each row, each column and each 3x3 box holds 1-9 exactly once. Tap a cell and choose a digit; wrong entries are flagged for correction. Scan for the number that appears most often on the board and check where it must still go — scarcity points the way. When two cells in a box both allow only the same two digits, every other cell in that box can exclude them. Tip: difficulty levels change the starting clues, not the rules — the method never changes.