10 games in this bundleHOW TO PLAYEach puzzle consists of a square grid with numbers appearing in all squares.The object is to add one additional digit in some cells such as the sum of the numbers in each row and each column equals to the selected sum 30 .Players exercise their analytical thinking, strategic planning, and mathematical skills as they navigate through increasingly complex levels. The game's simplicity in design masks its intricate gameplay, making it suitable for players of all ag