|   | Sudoku FREE 14.000+ puzzles (v. 1.1) Разработано Sudoku Inc
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		Sudoku FREE is the best Sudoku app on the market. 14.000+ free puzzles for you to solve today! 
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 sub-grids that compose the grid (also called "boxes", "blocks", "regions", or "sub-squares") contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which typically has a unique solution.