idnr: 631
3
9
7
1
5
3
4
8
9
6
Difficulty: Easy (0)
idnr: 601
5
1
8
7
3
6
9
1
9
6
6
4
Difficulty: Easy (0)
idnr: 900
4
1
2
3
6
3
2
9
1
7
8
1
Difficulty: Very hard (0)
idnr: 719
1
7
6
7
1
5
9
6
2
9
6
4
Difficulty: Very hard (0)