original story from https://alex-aka-jj.livejournal.com/66984.html

How to draw seven red lines, all perpendicular, some with green ink, some with transparent ink, and one in the form of a kitten.

(response to "The Expert" https://www.youtube.com/watch?v=BKorP55Aqvg aka https://videos.viorsan.com/w/uoDwELMHYtYuHX7vKa5hmz (Peertube version) aka https://videos.viorsan.com/w/83oime3Gg9nRZPMunqfPzC (Russian translation)