Check out this series on the Tetris the Grand Master series
Saw this documentary on the Tetris the Grand Master series being shared on Bluesky and ended up watching it in full over the course of the day. It's really good! A fun and extensive look at a particular area of Tetris history that is often overlooked.
Also worth reading this excellent piece on the Grand Master series from Amr Al-Aaser over on Canonfire. Covers a lot of the same material, but it's a great piece all the same.