Killer Sudoku, Difficulty 7

Puzzle 16525 May 28 May 2018
Puzzle 16550 Jun 2 June 2018
Puzzle 16650 Jun 22 June 2018
Puzzle 16720 Jul 6 July 2018
Puzzle 16730 Jul 8 July 2018
Puzzle 16790 Jul 20 July 2018
Puzzle 16885 Aug 8 August 2018
Puzzle 16905 Aug 12 August 2018
Puzzle 16925 Aug 16 August 2018
Puzzle 16975 Aug 26 August 2018
Daily Killer Sudoku