idnr: 1381
7 3
2 1
8 3 6
8
2 5 6 9
4 5 4 1
9
7
Difficulty: Medium
idnr: 8355
1
5 7 3
1 4
6
2
7
3 6 4
2 5
Difficulty: Medium
idnr: 6772
8 7
6 4
8 5
3
3 1
2
6 7 4 1
2 5
Difficulty: Medium
idnr: 4593
7 6 7
3 5 6
8 4
1 3
5
1
2 2
4 8
Difficulty: Medium