Killer Sudoku, Difficulty 3

Puzzle 8593 Feb 18 February 2014
Puzzle 8603 Feb 20 February 2014
Puzzle 8613 Feb 22 February 2014
Puzzle 8623 Feb 24 February 2014
Puzzle 8633 Feb 26 February 2014
Puzzle 8643 Feb 28 February 2014
Puzzle 8653 Mar 2 March 2014
Puzzle 8663 Mar 4 March 2014
Puzzle 8673 Mar 6 March 2014
Puzzle 8683 Mar 8 March 2014
Daily Killer Sudoku