That was fast. I guess it wasn't necessary to find all 3 smaller prizes first to get the 310 BTC; the 0.31 BTC puzzle remains unsolved.
Looks like it wasn't or maybe only part of the solution for the smaller puzzles was required to claim main prize, so the winner left it to focus on it and right now after getting big reward he's no longer interested in "mere" 0.31.
I just don't get two things.
Why the first 3 rewards are so miniscule in comparison to the grand prize? Something like 0.1, 2, 31, ~270 would be better, wouldn't it?
And what's the meaning of 310? There must be some meaning of it.