Killer Sudoku, Difficulty 10

Puzzle 4327 Oct 19 October 2011
Puzzle 4337 Oct 21 October 2011
Puzzle 4347 Oct 23 October 2011
Puzzle 4357 Oct 25 October 2011
Puzzle 4367 Oct 27 October 2011
Puzzle 4377 Oct 29 October 2011
Puzzle 4387 Oct 31 October 2011
Puzzle 4392 Nov 1 November 2011
Puzzle 4402 Nov 3 November 2011
Puzzle 4407 Nov 4 November 2011
Daily Killer Sudoku