This pattern has been sent in by reader Valeria Vasiljeva (Валерия Васильева) to a Russian language print magazine, and there are many subsequent videos by other people on how to crochet it. The original instructions as submitted by Valeria Vasiljeva to the magazine are in the Russian language.
The ribbing and cuffs in the original were knitted in 2x2 ribbing on a Silver Reed knitting machine.

Any English versions are likely made without the publisher’s consent. Neither “Grid Crochet Sweater on YouTube” nor “Fab Art DIY” are original sources of publication.