Bahare Fatemi and Seyed Mehran Kazemi and Nazanin Mehrasa, Rating and Generating Sudoku Puzzles Based On Constraint Satisfaction Problems. journal = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology. September 2014, vol. 94(10). 1816 - 1821 [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/9999524.