You don't have to delete it... I'll report and hopefully a moderator will move subsection. It's just the wrong section to post something like that.

(Giving the OP a very large benefit of the doubt, this is the right forum, since it is ostensibly about math. It remains to be seen, however, whether it will stay that way.) Meanwhile, tell us about this mysterious parcel and what its contents solved.

ON APRIL 17, a paper arrived in the inbox of Annals of Mathematics, one of the discipline’s preeminent journals. Written by a mathematician virtually unknown to the experts in his field — a 50-something lecturer at the University of New Hampshire named Yitang Zhang — the paper claimed to have taken a huge step forward in understanding one of mathematics’ oldest problems, the twin primes conjecture.

In 2013. Four years ago... OK. Here's the rest of the article for those who don't want to wait half dozen more posts to get some answers: https://www.wired.com/2013/05/twin-primes/

A good read. The nutshell of his proof is that "...there is some number N smaller than 70 million such that there are infinitely many pairs of primes that differ by N. No matter how far you go into the deserts of the truly gargantuan prime numbers — no matter how sparse the primes become — you will keep finding prime pairs that differ by less than 70 million." and the significance the the math community is that "This work is a game changer, and sometimes after a new proof, what had previously appeared to be much harder turns out to be just a tiny extension."

Again, you would likely get more feedback if you started a conversation expressing your own ideas, rather than asking simple yes/no questions.