Fun mathematical puzzle game for children and adults. Exercise for the brain. The game is a field of 10x10, on which the numbers from 1 to 9 are randomly arranged, the number that you want to get by adding numbers on the playing field appears on top. The game has three difficulty modes. The game was popular in its time on personal computers. This game will appeal to those who like the likes of games like, Seeds, Fifteen, 2048 and other mathematical games.