Killer Sudoku, Difficulty 3

Puzzle 8283 Dec 18 December 2013
Puzzle 8293 Dec 20 December 2013
Puzzle 8303 Dec 22 December 2013
Puzzle 8313 Dec 24 December 2013
Puzzle 8323 Dec 26 December 2013
Puzzle 8333 Dec 28 December 2013
Puzzle 8343 Dec 30 December 2013
Puzzle 8358 Jan 2 January 2014
Puzzle 8368 Jan 4 January 2014
Puzzle 8378 Jan 6 January 2014
Daily Killer Sudoku