The game sounds simple, Get one and only one of each color of marble in each of nine rows, each of the nine columns and each of the nine 3 x 3 squares. Each puzzle has but one correct solution. Each puzzle card starts with a designated number of "clues" telling which marbles in which color to place where on the board. It's your task then to fill in the rest of the board with the rest of the marbles in a way that you have only one of each color in each row, each column, and each box.Features Dimension - 13.5 x 13.5 x 1.5 in. Item weight - 5.0 pounds