Numerical puzzle, it can be said - a mix of Tetris and Sudoku. You need to determine the ball so that in a place where it falls, the number of adjacent balls vertically or horizontally to become equal numbers on the balls in a row or column, then the balls disappear. The game has a gray balls that crack, if they disappear around a ball with a number, and the next time the ball becomes a figure. The game is very addictive!