If we're talking about Fun maths, there's a couple of really good channels that look at Olympiad problems. - vEnhance (https://www.youtube.com/c/vEnhance https

If we're talking about Fun maths, there's a couple of really good channels that look at Olympiad problems. - vEnhance (https://www.youtube.com/c/vEnhance https://www.youtube.com/c/vEnhance), an MIT student and IMO Gold Medalist who solved problems live on stream (and plays various games) - Osman Nal (https://www.youtube.com/c/OsmanNal https://www.youtube.com/c/OsmanNal), looking at problems ranging from AMC/AIME to IMO 3/6s - Michael Greenberg (https://www.youtube.com/channel/UC3mhbGC7kQgzkXT9fceNOwA https://www.youtube.com/channel/UC3mhbGC7kQgzkXT9fceNOwA), a geometry enthusiast who also live solves problems, though the production quality isn't amazing And of course, Michael Penn (but that's in the post above)!