Killer Sudoku
Easy
Medium
Hard
Expert
Diabolical
4
29
7
10
12
12
16
9
14
9
12
7
15
12
12
8
11
15
18
15
18
13
18
8
18
18
10
16
22
17
1
2
3
4
5
6
7
8
9
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Verified puzzle
· Difficulty:
Diabolical
· Cages:
30
· Solver steps:
3693
· Search depth:
8
· Solutions:
1