expert 16×16 Set 30 Grid Puzzle
5
6
D
B
C
9
D
3
F
A
D
2
4
9
C
E
F
3
6
6
9
7
0
C
4
9
8
D
A
4
2
8
9
7
D
2
E
1
B
C
8
6
F
3
2
9
7
6
E
6
E
1
8
F
2
A
E
8
9
3
0