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