seen from United States
seen from Mexico
seen from United States
seen from United States
seen from United States
seen from United States
seen from United States
seen from China
seen from United States
seen from China
seen from United Kingdom
seen from United States
seen from Malaysia
seen from United States
seen from China
seen from China
seen from Italy
seen from United States
seen from Hong Kong SAR China
seen from United States
De vraag is ook in de Wetenschapsagenda gesteld: Hoeveel cellen moeten in een Sudoku minimaal gegeven worden om hem uniek oplosbaar te maken? Dit artikel uit het januarinummer (2013) van Pythagoras legt uit hoe het antwoord, 17, gevonden is.
