Killer Sudoku, Difficulty 3

Puzzle 9508 Aug 20 August 2014
Puzzle 9518 Aug 22 August 2014
Puzzle 9528 Aug 24 August 2014
Puzzle 9538 Aug 26 August 2014
Puzzle 9548 Aug 28 August 2014
Puzzle 9558 Aug 30 August 2014
Puzzle 9573 Sep 2 September 2014
Puzzle 9583 Sep 4 September 2014
Puzzle 9593 Sep 6 September 2014
Puzzle 9603 Sep 8 September 2014
Daily Killer Sudoku