Killer Sudoku, Difficulty 3

Puzzle 15303 Oct 14 October 2017
Puzzle 15333 Oct 20 October 2017
Puzzle 15343 Oct 22 October 2017
Puzzle 15363 Oct 26 October 2017
Puzzle 15373 Oct 28 October 2017
Puzzle 15383 Oct 30 October 2017
Puzzle 15438 Nov 10 November 2017
Puzzle 15458 Nov 14 November 2017
Puzzle 15478 Nov 16 November 2017
Puzzle 15508 Nov 22 November 2017
Daily Killer Sudoku