Killer Sudoku, Difficulty 3

Puzzle 103 Feb 2 February 2009
Puzzle 106 Feb 3 February 2009
Puzzle 118 Feb 7 February 2009
Puzzle 121 Feb 8 February 2009
Puzzle 133 Feb 12 February 2009
Puzzle 139 Feb 14 February 2009
Puzzle 148 Feb 17 February 2009
Puzzle 154 Feb 19 February 2009
Puzzle 172 Feb 25 February 2009
Puzzle 175 Feb 26 February 2009
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