Einstein predicted only 0.001% of the people would be able to solve this of his puzzle. And congratulations if you successfully qualify to be a part of the elite club. But that is not to say that you are not brilliant if you fail to solve this puzzle, you know why? Einstein even said “if you judge a fish by its ability to climb a tree, it will die whole its life, thinking of itself as stupid.” What Einstein here meant was that there is no standard measurement of intelligence. So even this cannot be a standard measure of dynamic smartness that we are all born with.
And hence it is not very much a matter of proving your smartness, or rather validating it. You can be your own genius. 😀
Be creative, keep learning!