Killer Sudoku, Difficulty 7

Puzzle 14787 Jul 6 July 2017
Puzzle 14797 Jul 8 July 2017
Puzzle 14847 Jul 18 July 2017
Puzzle 14877 Jul 24 July 2017
Puzzle 14939 Aug 2 August 2017
Puzzle 14959 Aug 6 August 2017
Puzzle 14989 Aug 12 August 2017
Puzzle 14999 Aug 14 August 2017
Puzzle 15124 Sep 8 September 2017
Puzzle 15144 Sep 12 September 2017
Daily Killer Sudoku