1 Confirmed names
- Queen Camilla: frequently cited in UK press as a daily Sudoku devotee.
- David Beckham: included among well-known Sudoku fans in coverage of the puzzle’s rise.
- Neil Patrick Harris: described as “addicted to Sudoku” in media profiles.
- Joan Rivers: referenced puzzles (incl. Sudoku) as a way to keep mental agility.
- Carol Vorderman: hosted TV’s Sudoku Live; her branded games popularised the format.
- Theresa May: reported to plough through Sudoku on flights during the Brexit years.