RULES : Classic Sudoku rules apply. Each of the four shaded 3x3 regions must also contain digits from 1 to 9.
RULES : Classic Sudoku rules apply. Each of the four shaded 3x3 regions must also contain digits from 1 to 9.
RULES : Classic Sudoku rules apply. Each of the four shaded 3x3 regions must also contain digits from 1 to 9.
RULES : Classic sudoku rules apply. Each of the four shaded 3x3 regions must also contain digits from 1 to 9.
Rules: Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and 3x3 outlined box. For...