The objective is to fill a 9x9 grid with digits so that each column, each row, and each of the nine 3x3 sub-grids that compose the grid contains all of the digits from 1 to 9.FEATURES:- four different difficulties- hundreds of puzzles for each difficulty- auto-save your progress for each puzzle- unlimited undo/redo- auto-fill drafts- clean interface and smooth controls- phones and tablets support
Sudoku
