Greater-Than Killer Sudoku, Difficulty 10

Puzzle 6391 Dec 4 December 2012
Puzzle 6496 Dec 25 December 2012
Puzzle 6530 Jan 1 January 2013
Puzzle 6574 Jan 10 January 2013
Puzzle 6589 Jan 13 January 2013
Puzzle 6595 Jan 14 January 2013
Puzzle 6619 Jan 19 January 2013
Puzzle 6654 Jan 26 January 2013
Puzzle 6679 Jan 31 January 2013
Puzzle 6714 Feb 7 February 2013
Daily Killer Sudoku