[k3d]

For folks who are interested in the what went into designing it, the devs published their emails over the course of development. It's a pretty neat glimpse into how a game's design evolves, as well as the effort it takes to come up with a clean, "simple" mechanic: http://asherv.com/threes/threemails/

[thomasahle]

It's interesting he says that only 6 people in the world have ever seen a 6144 tile. Automatic controllers can reach it pretty often, https://arxiv.org/pdf/1606.07374.pdf says 7.83% of the tries.