Collection: Sudoku

In sudoku, the objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid (also called "boxes", "blocks", or "regions") contains all of the digits from 1 to 9.

Also there are some start up formats for the kids with 4x4, 6x6, 4x6 etc., just to encourage the kids beginners to start with, we may call this as Kidoku as well.