How to play Sudoku
Play free Sudoku online with easy, medium, and hard daily puzzles, pencil notes, mistake checking, and timing.
Click or tap the board to act. Most puzzles also support arrow keys, Enter, and restart without reloading.
V5 Games
Sudoku
Fill the grid so every row, column, and box works.
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Why players come back to Sudoku
Replay for fewer moves and a faster solve, then raise the board size or difficulty when the pattern becomes familiar.
Sudoku strategy
Read the whole board before committing. Forced moves and constraints are more valuable than guesses.
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