The objective of a Sudoku game is to fill a 9×9 grid with digits so that each column, row, and each of the nine 3×3 subgrids that compose the grid contains all of the digits from 1 to 9. The game can be generalized to a nxn grid where n is a perfect square. If n=m*m, then
the goal is to fill every row, column, and mxm grid with the numbers from 1 to m. This app provides infinite Sudoku puzzles of orders 9, 16, and 25.