If you want to check your attentiveness, then try to go through all the levels of the new online puzzle Pixel Differences. In it you will have to look for differences between pixel pictures. Before you on the screen will be visible a game field on which two images will appear. You will have to carefully examine them. Find in each picture the elements of which are not in another image. Now just highlight them with a click of the mouse. Thus, you will designate them in Pixel Differences in the pictures and get glasses for it.
