Bizarre Sudoku Set-Up

Featuring Mark Goodliffe from Cracking the Cryptic.

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Cracking the Cryptic (featuring Mark and his off-sider Simon): https://www.youtube.com/c/CrackingTheCryptic

See Simon crack this puzzle at: https://youtu.be/HVt_VnkFW0Q

More from CtC on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWKtlMAE1n0JbiBMqSH2VMH4

James Grime talks about Sudoku on Numberphile: https://www.youtube.com/watch?v=MlyTq-xVkQE