Classic Sudoku: Rules and Explanatory Diagrams
- Enter a number between 1 and 9 in each empty cell of the 9x9 grid.
- Each row, column, and block (3x3 box) must contain each number exactly once.
Row
Column
Block (3x3 box)
Editions Variations
Quality Sudoku Books
- Enter a number between 1 and 9 in each empty cell of the 9x9 grid.
- Each row, column, and block (3x3 box) must contain each number exactly once.
