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Sky Sudoku app for iPhone and iPad


4.2 ( 8992 ratings )
Games Puzzle Education Role Playing
Developer: Zhijun Huang
Free
Current version: 1.0, last update: 7 years ago
First release : 26 Nov 2014
App size: 4.11 Mb

Fully fit iphone4(s), iPhone 5(s),iphone6(+),ipad(all)

Sudoku , originally called Number Place,is a logic-based,combinatorialnumber-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 for a well-posed puzzle has a unique solution.

Completed puzzles are always a type of Latin square with 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 in any of the nine 3×3 subregions of the 9x9 playing board.