Killer Sudoku
Killer sudoku keeps the familiar 9×9 and replaces the given digits with dashed cages and printed sums, and every board is verified to have one solution and to be solvable by logic at the level it claims. Creative creates, styles and exports print-ready puzzles and answer keys at both board sizes and all seven levels, including the color cage edition, and builds books with Instant Puzzle Books and Puzzle Book Studio Creative. Free demo available.
$47.00