<b_jonas> slashlearn euclid//Euclid is a short geeky game in which the goal is to do Euclidean compass and straightedge constructions in as few steps as possible. It runs in the browser, found at "http://www.euclidthegame.com/". It was popular among #esoteric regulars in 2016-07.

Shaventions include: before/now/lastfiles, culprits, hog/{h,d}oag, le//rn, tmp/, mk/mkx, {s,p}led/sedlast, spore/spam/speek/sport/1/4/5, edit. Taneb did not invent them yet.