Step by step example of solving a sudoku puzzle
Step 6
Let’s look at the box in the middle bottom (where GHI cross MNO). We can’t put a 9 in row G and column O because there are 9s in cells DO (see step 5) and GR. Therefore, the only available sudoku cell is IM.
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
7
9
2
5
4
8
9
3
2
7
5
8
1
3
4
Step6: 9
7
9
8
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