Killer Sudoku, Difficulty 3

Puzzle 12099 Jan 20 January 2016
Puzzle 12109 Jan 22 January 2016
Puzzle 12119 Jan 24 January 2016
Puzzle 12129 Jan 26 January 2016
Puzzle 12139 Jan 28 January 2016
Puzzle 12149 Jan 30 January 2016
Puzzle 12164 Feb 2 February 2016
Puzzle 12174 Feb 4 February 2016
Puzzle 12184 Feb 6 February 2016
Puzzle 12194 Feb 8 February 2016
Daily Killer Sudoku