Maki Kaji

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Maki Kaji (鍜治 真起, Kaji Maki, born 1951) is the president of Nikoli Co., Ltd., a Japanese puzzle manufacturer.

He was significant in promoting the development and marketing of the game of Sudoku. He has invented or introduced various other puzzle games such as Masyu and sells 50,000 copies of his puzzle magazine Nikoli four times a year.


  • [1] - History of Sudoku
  • [2] Independent (UK) newspaper article on Maki Kaji
  • [3] - BBC News 'Father of Sudoku' Puzzles Next Move.