idnr: 4107
3
2 3 4 6
8
7 9
6
2 1
5
5 9 1 8
4 7
Difficulty: Medium
idnr: 8450
8
7 2 6 1
3
5 3
1 4
8
7 6 4
5 2
Difficulty: Medium
idnr: 5553
4 7
8 3 2 1
6 7
5
5
3 1 6
2
8 4
Difficulty: Medium
idnr: 685
3
1 2 3 7
8 6
1
6 5 5
8
2 7 4
4
Difficulty: Medium