Challenge the memory limit "the Invincible chalk Line" evaluation

If you scribble a few lines on paper, can you take a look at them and remember the shape, trajectory and position on the paper? and be exact. "Invincible Chalk Line" is a painting style is very concise puzzle game, the background is a small blackboard, in the beginning of the game, the blackboard will appear obstacles, arrows and blue target, this is the entire structure of the game. Seemingly simple, but the game is very challenging. In the game, as long as your fingers touch the screen, obstacles will be invisible, although not visible, but he is there. What you need to do is to draw a line to the end of the target with the arrow as the starting point of your memory, but the line has to avoid obstacles and the game fails once it touches those invisible obstacles. So you need to remember the location of all the obstacles in your mind. The game test is the player's memory ability and space imagination, the more to the back of the checkpoint, the more dense barriers distribution and tricky, these abominable obstacles not only covered the whole blackboard, and obstacles and obstacles between the distance is very narrow, if you only remember the location of the obstacles, then no doubt, You're bound to encounter ubiquitous invisibility barriers. So, if possible, in the brain to redraw all the obstacles in the position, or you can cheat screenshots or film, even against the original image, you may not see the obstacles in another picture to accurately draw a safe line, which is the challenge of the game. "Invincible Chalk Line" this game of the play on the novel, simple line screen, but can bring a full of charm and challenging the playing, recommended.