medium 9×9 Set 1 Grid Puzzle
7
5
8
6
9
2
4
8
7
5
9
1
4
6
2
1
6
1
8
5
7
4
3
1
6
4
8
3
7
5
3
1
7
9
1
2
7
4
5
9
8
2
3
4
5
7
8