A
4
7
6
0
B
1
2
8
4
9
6
7
0
C
9
6
1
4
8
5
7
D
0
3
4
7
5
2
6
E
2
7
6
0
1
8
F
5
4
8
0
3
G
2
9
7
8
4
3
H
4
5
0
6
8
7
3
9
1
I
1
8
4
2
5
3
J
3
8
9
1
6
2
4
A
B
C
D
E
F
G
H
I
J
Click on a white box to add a number.
You can only change the numbers you place on the board
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