Just Sudoku 1.2

Access a virtual Sudoku table on your computer. Manage individual pieces and fill a 9×9 grid with digits. Organize the elements in a sequence where each column, each row, and each of the nine 3×3 sub-grids contains a full set of smaller digits from 1 to 9.

Sudoku is a logic-based, combinatorial number-placement puzzle. 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", "regions", or "sub-squares") contains all of the digits from 1 to 9.