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.
Come giocare
Padroneggia la deduzione logica in un ambiente calmo e concentrato. Impara le regole fondamentali del Sudoku classico ed esplora la sfida del Killer Sudoku.
Sudoku classico
1
The Grid Structure
The board is a 9×9 grid divided into nine 3×3 blocks (regions).
2
The Goal
Fill every empty cell with digits 1–9. You start from a partially completed puzzle with one unique solution.
3
The Golden Rule
Digits 1–9 cannot repeat in any row, column, or 3×3 block — each must appear exactly once.
Modalità Sudoku killer
Killer Sudoku combina il Sudoku classico con le somme in stile Kakuro. Ottimo per la concentrazione e l'aritmetica mentale.
Impara le regole del Killer SudokuDomande frequenti sul sudoku
What is the difference between easy and hard Sudoku?
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.