2576 - Control Group

Placeble 228 x/6n⬜⬜⬜⬜⬜n⬜⬜⬜⬜⬜n⬜⬜⬜⬜⬜n⬜⬜⬜⬜⬜n⬜⬜⬜⬜⬜n⬜⬜⬜⬜⬜

This is an archival copy of the works from xkcd.com.