hard 16×16 Set 8 Grid Puzzle
7
6
B
2
C
E
1
C
4
F
0
9
7
B
A
6
A
0
3
D
4
5
7
4
C
8
2
7
5
6
F
4
9
2
6
3
8
0
C
7
5
A
B
1
2
D
B
0
B
8
5
1
9
0
A
E
5
F
3
0
2
7
9
A
1
8
D
2
8
7
E
3
6
2
7
4
5
F
E
1
0