SUDOKU MONTHLY of January, 2017 contains the five issues of SUDOKU WEEKLYof week 1 to week 5.Each week, there is a Sudoku for each day. There are several kinds: apart from the familiar regular ones, there are also MAGIC Sudoku's and DIAGONAL Sudoku's. They are ordered from an easy, regular one on Monday to a more difficult, diagonal one on Sunday.