Step by step example of solving a sudoku puzzle
Step 7
Let’s look at the box in the middle left sudoku grid (where DEF cross JKL). We can put 5s in the columns J and L because there are 5s in cells AJ and GL. We can’t put a 5 in FK because there’s a 5 in FM. Therefore, the only available cell is EK.
J
K
L
M
N
O
P
Q
R
A
B
C
D
E
F
G
H
I
5
2
9
6
1
9
7
4
6
3
5
9
7
2
6
1
Step7: 5
7
9
2
5
4
8
9
3
2
7
5
8
1
3
4
9
7
9
8
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