Why
The aim in Sudoku is to ensure that each column, each row, and each of the nine 3 × 3 sub-grids that compose the larger 9 x 9 grid contain all of the digits from 1 to 9. 9 is a lucky number for people born in the year of the dog.
The aim in Sudoku is to ensure that each column, each row, and each of the nine 3 × 3 sub-grids that compose the larger 9 x 9 grid contain all of the digits from 1 to 9. 9 is a lucky number for people born in the year of the dog.