interesting distinction. there are some chimps who are better puzzle solvers than humans but how do you describe what makes us special
Oh, you can describe it for days, there's so much to say.
For example, we are, as far as we're aware at least, we're the only species that has the ability to contemplate it's own existence.
We're capable of meta thoughts, we can think about thinking.
Then of course there's the written language and with it, the ability to pass on really complex things to future generations which can improve upon it and pass on an upgraded version even further.
When it comes to puzzle solving, we can have one smart human solve it and then, we can pass on the knowledge of how to solve it to everyone else.
For example, you don't need to figure out how to solve the rubix cube, you can look up a detailed tutorial made by someone who figured it out before you, making it really easy.
We are a unique species and many things make us special.