Maki Kaji, the creator of puzzle Sudoku passed away at the age of 69 years due to bile duct cancer. He was known as the father of Sodoku and was from Japan. He was the president of Nikoli Co., Ltd., a Japanese puzzle manufacturer. Kaji established Japan’s first puzzle magazine, Puzzle Tsushin Nikoli, with pals in 1980. His most legendary creation, Sudoku, followed in 1983.