The Most Mathematical Sudoku
Simon Anthony (from Cracking the Cryptic) shows us an incredible sudoku set by a mathematician.
See the Phistomefel Ring at: https://youtu.be/pezlnN4X52g
Cracking the Cryptic: https://www.youtube.com/c/CrackingTheCryptic
See Simon crack the puzzle at: https://youtu.be/qvfBBhhCLxo
Another Numberphile video about Sudoku: https://youtu.be/MlyTq-xVkQE
Thanks also to mathguy_12 (Nathan Hallmark) - see his research at: https://repository.flsouthern.edu/items/16c6d2fe-3640-409f-89f2-232ace2dbdd3