Killer Sudoku, Difficulty 10

Puzzle 8185 Nov 28 November 2013
Puzzle 8195 Nov 30 November 2013
Puzzle 8205 Dec 2 December 2013
Puzzle 8215 Dec 4 December 2013
Puzzle 8225 Dec 6 December 2013
Puzzle 8235 Dec 8 December 2013
Puzzle 8245 Dec 10 December 2013
Puzzle 8255 Dec 12 December 2013
Puzzle 8265 Dec 14 December 2013
Puzzle 8275 Dec 16 December 2013
Daily Killer Sudoku