Here’s a tweet from Alex Bellos this morning:

BBC claims Nigerian solves Riemann Hypothesis, most famous problem in maths. Surely a hoax! https://t.co/Wkltfkh2P3 https://t.co/UHGy9W8shC

— Alex Bellos (@alexbellos) November 17, 2015

He’s right to be surprised – as reported in Vanguard, a Nigerian newspaper:

The 156-year old Riemann Hypothesis, one of the most important problems in Mathematics, has been successfully resolved by Nigeria Scholar, Dr. Opeyemi Enoch.

Suspicion levels are raised, as the paper also reports:

Three of the [Clay Millenium Prize] problems had been solved and the prizes given to the winners. This makes it the fourth to be solved of all the seven problems.

Unless we missed something, that’s not massively true – the only Millennium Prize problem solved so far is the Poincaré conjecture.