Microsoft Excel VBA Sudoku Solver.
Sudoku is a logic-based, combinatorial number-placement puzzle. 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.
Completed games are always an example of a Latin square which include an additional constraint on the contents of individual regions. For example, the same single integer may not appear twice in the same row, column, or any of the nine 3×3 subregions of the 9×9 playing board."
Sudoku Solver can solve sudoku puzzles of EASY, MODERATE, CHALLENGING and VERY DIFFICULT difficulty rating.
If you would like an unprotected and unobsfucated version of Sudoku Solver this can be purchased for £2.40(including VAT) via Payhip secure checkout.