Sudoku
Choose a puzzle and begin.
Your challenge
Fill the 9×9 grid so every row, column, and 3×3 box contains the digits 1–9 exactly once. Choose from three difficulties, tackle the Daily puzzle, or shuffle for a new challenge. Pencil notes and conflict markers help you reason through each uniquely solvable board, while Insight offers a hint when you need a fresh angle.
ControlsTouch controls · Mouse · Keyboard
Aim forPuzzle completion score · Higher is better
Play stylePuzzle · Logic