'Father of Sudoku' puzzles next move

    If you are hooked on Sudoku - the puzzle where you fill numbers in on a grid - the man you have to blame is a Japanese publisher who unleashed it on an unsuspecting world.
    Maki Kaji collects new puzzles and refines them with the help of thousands of Japanese subscribers to his quarterly puzzles magazine.Japan has many thousands of amateur puzzlers, but Kaji-san is in a different league.
He is the daddy of them all, a man whose business card says "Father of Sudoku" in case you were in any doubt of his importance. For Details