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.Sudoku Platinum Free generates puzzles on the device at 1 of 4 difficulty levels. Each generated puzzle is unique with only one solution, so never play the same puzzle twice.Sudoku Platinum Free includes autosave feature, so you can continue the puzzle at a later time.Sudoku Platinum Free has Scoreloop integrated. Scores are global. Compare your score to those of your friends and other Sudoku Platinum Free players.