Sudoku Math includes unlimited play of Sudoku at various levels of difficulty to challenge players of all experience levels. In addition to being a feature-rich Sudoku app, Sudoku Math includes a Math game mode. This Math style of Sudoku was invented by Tetsuya Miyamoto in 2004, which he used to teach his students mathematics. Sudoku Math takes Miyamoto's game one step further by incorporating square roots calculations in each puzzle.Scientific experts agree that solving challenging mind games like Sudoku puzzles inhibit or prevent the development of Alzheimer's disease and memory loss. Not only are these puzzles fun and challenging, but they are great for mental exercise. Features include:- Two game styles: Sudoku and a MATH mode- Puzzle generator for unlimited play - for both puzzle styles- 9x9 Sudoku algorithm generates nine 3x3 squares, each square containing one occurrence of each number- 6 grid sizes, ranging from 4x4 to 9x9- Three difficulty levels for each grid size- Intuitive user interface- Lifeline/hint button to reveal an answer- Highlighter/pencil button to support noting multiple numbers in one square- Games get saved automatically when App exits- Game clock to challenge yourself and friends- Languages supported: English, Spanish, FrenchHOW TO PLAY:The rules for Sudoku are simple. Fill each box with a number from 1 to X, where X is the grid size of the puzzle: 4x4 game: fill in with numbers from 1 to 4. 5x5 game: fill in with numbers from 1 to 5. 6x6 game: fill in with numbers from 1 to 6. …and so on.Each number can only be used once in any row or column, *and* once per 3x3 square. In the Math style, the grid is also divided into heavily outlined sections which contain a target number and a math operator. The numbers filled into these outlined sections must combine (in any order) to produce the target number using the indicated math operator.Outlined sections that contain only one box will have a square root equation as the target. Fill in these boxes with the resulting square.