Killer Sudoku, Difficulty 3

Puzzle 19574 Jan 28 January 2020
Puzzle 19599 Feb 2 February 2020
Puzzle 19609 Feb 4 February 2020
Puzzle 19619 Feb 6 February 2020
Puzzle 19629 Feb 8 February 2020
Puzzle 19639 Feb 10 February 2020
Puzzle 19659 Feb 14 February 2020
Puzzle 19669 Feb 16 February 2020
Puzzle 19689 Feb 20 February 2020
Puzzle 19699 Feb 22 February 2020
Daily Killer Sudoku