idnr: 445
6 2 8
5 9 7
7 8
2 10
10 1
3 9
4 4
6 5 1
3
Difficulty: Medium
idnr: 1389
10 8
7 1 3
4
4 6 9
7
10 9
5 3 2
2 6
5 1 8
Difficulty: Medium
idnr: 4075
1 8
3 7 9
5
8 9 4
2 6
1 6 3
5 4
2 7
Difficulty: Medium
idnr: 7499
3
2 7
7 8
2 6
4 5
1 3
8 6
4 1 5
Difficulty: Medium