Very dazzling light and shadow effect, full of science and technology sense of intelligence game, classic stroke play, let you use your brain to kill ..

Very dazzling light and shadow effect, full of science and technology sense of intelligence game, classic stroke play, let you use your brain to kill a lot of time, click on each aperture origin to let the line segment connect, but the line segment that has been lit can't be connected repeatedly.When you pass one level after another the more difficult the game will be Some special rules will be given in the game such as the line that needs to pass twice the line that can only pass from one direction and the jumping point that can move to ano