@article{TjusilaBesanconTurneretal.2024, author = {Gennesaret Tjusila and Mathieu Besan{\c{c}}on and Mark Turner and Thorsten Koch}, title = {How Many Clues To Give? A Bilevel Formulation For The Minimum Sudoku Clue Problem}, journal = {Operations Research Letters}, volume = {54}, pages = {107105}, doi = {10.1016/j.orl.2024.107105}, year = {2024}, }