TOKYO: Maki Kaji (69) the creator of the popular numerical brain teasers-Sudoku whose life's work was spreading the joy of puzzles, died due to bile duct cancer. He passed away at his home in Mitaka, a city in the Tokyo metro area. Known as the “Godfather of Sudoku,” Kaji created the puzzle to be easy for children and others who didn't want to think too hard. Its name is made