Ends of pipes arise in front of you. A green and a red dissociate screen, because they are respectively the starting and arrival pipes of the course. Therefore, you will have included/understood it, it is necessary to click on the blue boxes so that the ends of pipes which they contain form a course until the arrival. But that will not be done immediately. As of the beginning, remove the pipes already placed, because they are useless. Then, after having clicked on a box, if it is not the pipe of your choice, click (in the column of right-hand side) on a pipe framed of purple to change it with your own way (or use the key ¡°\¡±), or then entirely erase the column of pipes using the Bar Spaces. In short, it is a good small headache which I would have tried to explain you, and who will give you wire with retordre¡­ Good luck, and try to keep your intact hair!