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