【實用遊戲app】Sudoku Grandmaster - Free|最夯免費app-綠色工廠好玩App

Sudoku originally called Number Place, 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.Additional features:- Auto complete and remove notes.- Save & restore game progress for solving easily.- Provide hints.- Selected number highlighting.- Alert for wrong input.- 4 Levels: easy, medium, hard, expert.인