Killer Sudoku, Difficulty 10

Puzzle 12486 Apr 6 April 2016
Puzzle 12496 Apr 8 April 2016
Puzzle 12506 Apr 10 April 2016
Puzzle 12511 Apr 11 April 2016
Puzzle 12516 Apr 12 April 2016
Puzzle 12526 Apr 14 April 2016
Puzzle 12536 Apr 16 April 2016
Puzzle 12546 Apr 18 April 2016
Puzzle 12556 Apr 20 April 2016
Puzzle 12561 Apr 21 April 2016
Daily Killer Sudoku