The game contains a matrix of squares, the size of the matrix is 5x5, 6x6, 7x7, 8x8, 9x9, 10x10 depends on the level you are playing and the difficulty level you want to challenge. Your mission is to connect two dots which have the same color by drawing a line between them. The mission will be completed when all the following conditions are met: 1. All the same color dots are connected in pairs. 2. There are no intersect of any lines. 3. All the squares in the matrix are filled with the lines. The difficulty will increase because there are more color dots when the level up. There are thousands levels for you to challenge.