SUDOKU MONTHLY of January, 2018 contains the five issues of SUDOKU WEEKLY of week 1 to week 5.Each week, there is a Sudoku for each day.All Sudokus are magic: From Monday (which has only one magic block) until Saturday (with six magic blocks) each weekday has one more magic block than the previous day. On Sunday all blocks are magic.The algorithm to generate the magic blocks has been completelyrevised.