As you were instructed by Snow White, you should not trust a mirror.
But it is not just the mirror which is tricking you – it is a mixture of the shapes and your perspective that is fickle.
It is possible to see another top 10 finalists in the contest here.
Speaking relating to this delusion, the opposition said: “The direct views of the items and their mirror images create rather distinct interpretations of the 3D contours. They look like cylinders that are perpendicular, but their sections may actually be distinct; in one view while in another perspective they seem to be circles, they seem to be rectangles. We cannot although we rationally know they come from the exact same things.” correct our interpretations
See it under. If it boggling your head, it is possible to take a look at this explanation although if you’re not fluent in German you might have to whack on your own Google Translate.