Killer Sudoku, Difficulty 7

Puzzle 9244 Jun 28 June 2014
Puzzle 9270 Jul 3 July 2014
Puzzle 9344 Jul 18 July 2014
Puzzle 10439 Feb 22 February 2015
Puzzle 11295 Aug 12 August 2015
Puzzle 11315 Aug 16 August 2015
Puzzle 12110 Jan 22 January 2016
Puzzle 12465 Apr 2 April 2016
Puzzle 12595 Apr 28 April 2016
Puzzle 13085 Aug 4 August 2016
Daily Killer Sudoku