As you can see, only the internal cells under the line we drew. To the rest of the cells are lined up in symmetrical rows, look in center field. After a couple of seconds, you will notice that the lines on the periphery of the picture starting to turn into a neat cell. The next time you want to do the cleaning, cleaned up only in the center of the room and try to apply this method.
Source:
www.maximonline.ru/photo/tags/maxim/10002/