This post is from one of several previous incarnations of this site and probably doesn’t quite fit the current format. In a former life this was a group blog and a tumblelog before it became a static jekyll site. If anything looks broken or is worded oddly that could be why. Pardon the dust.
Cleverly addictive numbers & blocks flash game with unintuitive rules (so be sure and read the FAQ). Also something to do with a Numb3rs TV show ARG apparently but it’s entertaining in its own right.