Play Sudoku Online Free

Fill calm, readable Sudoku grids across easy, medium, hard, and expert puzzles with no ads interrupting the logic.

Classic game

Sudoku

Use bookmarks to tag possible wrong choices

Four difficulty levels

Unlimited undo and hints

Easy

Medium

Hard

Expert

Play today's local challenge. It stays the same for this game until tomorrow.

Start a free round immediately and finish at your own pace.

Best Practices

Scan rows, columns, and boxes for cells with only one possible number.

Work one number at a time when the board feels crowded.

Use marks for uncertain guesses so you can backtrack cleanly.

Resolve visible conflicts immediately before they spread through the grid.

Sudoku is a pure number-placement puzzle. Each row, column, and box must contain the digits 1 through 9 exactly once.

FreeJeu's Sudoku supports easy, medium, hard, and expert Sudoku puzzle difficulties.

No. Sudoku uses logic and pattern elimination, not arithmetic.

Yes. All Sudoku puzzles are solvable. And there may be more than one solution for a given puzzle.

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