Killer Sudoku, Difficulty 3

Puzzle 4155 Sep 15 September 2011
Puzzle 4165 Sep 17 September 2011
Puzzle 4175 Sep 19 September 2011
Puzzle 4185 Sep 21 September 2011
Puzzle 4195 Sep 23 September 2011
Puzzle 4205 Sep 25 September 2011
Puzzle 4215 Sep 27 September 2011
Puzzle 4225 Sep 29 September 2011
Puzzle 4235 Oct 1 October 2011
Puzzle 4245 Oct 3 October 2011
Daily Killer Sudoku