So, yes. This Perplex City game that I kept writing about on my blog.
A two-and-a-half year hunt for a buried metal cube, somewhere on Earth. More than 50,000 players. A prize of £100,000 or $200,000.
I won it.
Like any ARG, for most of the game it was a community effort. Many smart, committed players moved us all forward, until a few of us got the chance to sprint for the line.
Here are some pages and links about what happened then.