Sudoku - Classic Jigsaw Killer

Sudoku is a logic-based, combinatorial number-placement puzzle. In classic Sudoku, the objective is to fill a 9 × 9 grid with digits so that each column, each row, and each of the nine 3 × 3 subgrids that compose the grid (also called "boxes", "blocks", or "regions") contain all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a single solution.
Although the 9×9 grid with 3×3 regions is by far the most common, many other variations exist, such as jigsaw, killer and so on.
This App lets you jump in and play quick Sudoku games in Classic、Jigsaw、Killer、Kropki、GreaterThan and more custom modes