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