Description of app- The objective is to fill a 9Ũ9 grid with digits so that each column, each row, and each of the nine 3Ũ3 subgrids that compose the grid (also called "boxes", "blocks", or "regions") contains 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.
api supported-23 and above