Killer Sudoku, Difficulty 3

Puzzle 7468 Jul 8 July 2013
Puzzle 7478 Jul 10 July 2013
Puzzle 7488 Jul 12 July 2013
Puzzle 7498 Jul 14 July 2013
Puzzle 7508 Jul 16 July 2013
Puzzle 7518 Jul 18 July 2013
Puzzle 7528 Jul 20 July 2013
Puzzle 7538 Jul 22 July 2013
Puzzle 7548 Jul 24 July 2013
Puzzle 7558 Jul 26 July 2013
Daily Killer Sudoku