idnr: 3371
3
17
7
14
23
17
4
16
19
20
Difficulty: Medium
Legal numbers: 1-9
idnr: 2456
23
4
7
4
9
17
21
3
25
3
Difficulty: Hard
Legal numbers: 1-9
idnr: 2901
16
4
4
12
16
17
20
4
20
9
Difficulty: Easy
Legal numbers: 1-9
idnr: 1321
9
11
20
9
9
30
14
8
24
8
Difficulty: Very hard
Legal numbers: 1-9