Killer Sudoku Productivity
Killer sudoku keeps the familiar 9×9 and replaces the given digits with dashed cages and printed sums, with one verified solution and a matching answer key on every board. Productivity adds Time Saver batch runs and Puzzle Book Studio Productivity, so an entire graded book, Very Easy at the front and Extreme at the back, comes out of a single click. Free demo available.
$97.00