How do you play Sudoku?
Fill a 9×9 grid so every row, column, and 3×3 box contains each digit from 1 to 9 exactly once.
Hallitse loogista päättelyä rauhallisessa, keskittyneessä ympäristössä. Opi klassisen Sudokun perussäännöt ja tutustu Killer Sudokun haasteeseen.
The board is a 9×9 grid divided into nine 3×3 blocks (regions).
Fill every empty cell with digits 1–9. You start from a partially completed puzzle with one unique solution.
Digits 1–9 cannot repeat in any row, column, or 3×3 block — each must appear exactly once.
Killer Sudoku yhdistää klassisen Sudokun Kakurotyylisiin summiin. Erinomainen keskittymiseen ja mielenlaskentaan.
Opi Killer Sudokun säännötFill a 9×9 grid so every row, column, and 3×3 box contains each digit from 1 to 9 exactly once.
Easy Sudoku puzzles start with more given digits and leave fewer cells to solve. Hard puzzles have fewer clues and usually require more advanced deduction.