Play our daily hard sudoku here. Plus, you can let us know what you think of the puzzles by emailing at [email protected]. We look forward to hearing from you.

Play our daily hard sudoku here. Plus, you can let us know what you think of the puzzles by emailing at [email protected]. We look forward to hearing from you.

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 up of the Japanese characters for “number ...