For people that aren't aware of BJJ Scout, he/she/they are a channel that does ridiculously detailed breakdowns of all types of stuff in Jiu Jitsu (gi and no-gi), MMA, and even wrestling and Judo. Some of the better breakdowns include Garry Tonon's entire game, the twister roll/berimbolo hybrid, takedown studies for GSP, Johny Hendricks, Ronda Rousey, passing studies for Leandro Lo, and a ton of other cool shit.
You can check the channel's videos here:
https://www.youtube.com/user/BJJSCOUT/videos
They were also live at ADCC and have some matches and "puzzle games" here:
https://www.youtube.com/user/bjjscoutb/videos
It's worth a look.