I am more interested in recordings as I like to follow along, pause, and "beat" their logic (in the rare case I can!) so I prefer YouTube and this channel is about as good as it gets: https://www.youtube.com/channel/UCC-UOdK8-mIjxBQm_ot1T-Q .. there's just so much great stuff on that one.
Sudoku on Twitch is not well established at all (yet), but if you see someone doing an advanced one (by following the "Sudoku" category – https://www.twitch.tv/directory/game/Sudoku) it can be worth tuning in especially as the live nature lets you "help" in the chat if you so wish. Maybe I should start streaming my own Sudoku solves! :-)
I know it's a rhetorical question but whenever I've tried streaming (such as coding on stream), I find talking while concentrating is not easy for me. But I imagine these things take practice!
