CheapShareware Sudoku Challenge v2.0 | 17 MBSudoku Challenge is a logic-based placement puzzle. The object of the puzzle is to enter a numerical digit from 1 through 9 in each cell of a 99 grid made up of 33 sub grids (called "regions"), starting with various digits given in some cells (the "givens"); each row, column, and region must contain only one instance of each numeral. Completing the puzzle requires patience and logical ability.
