This is an interesting style of the Sudoku game. To start a new Sudoku game just select your difficulty level. Tapping any cell reveals the answer for that cell. So to play first guess the number in a cell. Then touch it. You will see the correct number filled in that cell and immediately know if you’ve made a mistake in your guess. You can touch the cell again to blank it. No score is kept. Choose form 4 levels of simple, easy, intermediate and expert