Mensa Sudoku Challenge"Mensa Sudoku Challenge" is a collection of 29 puzzles and 300 advanced puzzle solved by the core members of the British Mensa research and found. Unlike the existing Sudoku books that only briefly describe the game rules, it covers everything from basic solving methods to solving the highest difficulty problems that are uncommon. I will stimulate the desire of those who are proud of being a "Sudoku master" from the middle class who want to upgrade their level.