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Naked Set

Medium

If 2-5 cells can only be the same 2-5 , you've found a Naked Set!

How it works

3
7
9
1
6
8
5
2
3
6
3
6
7
4
1
2
6
9
1
2
6
9
4
5
6
2
1
4
5
8
4
6
9
7
1
6
3
3
7
9
4
6
7
9
1
2
3
4
6
3
6
7
8
5
2
6
9
2
4
8
6
3
5
1
9
7
2
4
1
3
4
5
9
6
9
7
2
5
6
4
6
8
2
5
9
7
5
9
6
9
8
4
1
2
5
6
3
1
2
6
6
8
5
3
4
1
6
9
6
8
1
2
6
1
2
6
8
9
7
4
6
8
9
2
7
1
6
5
3
1
4
6
8
1
4
6
4
6
7
8
1
4
6
1
4
7
2
1
3
6
9
3
6
8
1
6
1
4
6
8
9
5

Notice this row

These two Cells can only be 6 or 8.All other are eliminated already.

3
7
9
1
6
8
5
2
3
6
3
6
7
4
1
2
6
9
1
2
6
9
4
5
6
2
1
4
5
8
4
6
9
7
1
6
3
3
7
9
4
6
7
9
1
2
3
4
6
3
6
7
8
5
2
6
9
2
4
8
6
3
5
1
9
7
2
4
1
3
4
5
9
6
9
7
2
5
6
4
6
8
2
5
9
7
5
9
6
9
8
4
1
2
5
6
3
1
2
6
6
8
5
3
4
1
6
9
6
8
1
2
6
1
2
6
8
9
7
4
6
8
9
2
7
1
6
5
3
1
4
6
8
1
4
6
4
6
7
8
1
4
6
1
4
7
2
1
3
6
9
3
6
8
1
6
1
4
6
8
9
5

One or the other

We know one of the Cells must be a 6 and the other must be a 8.

3
7
9
1
6
8
5
2
3
6
3
6
7
4
1
2
6
9
1
2
6
9
4
5
6
2
1
4
5
8
4
6
9
7
1
6
3
3
7
9
4
6
7
9
1
2
3
4
6
3
6
7
8
5
2
6
9
2
4
8
6
3
5
1
9
7
2
4
1
3
4
5
9
6
9
7
2
5
6
4
6
8
2
5
9
7
5
9
6
9
8
4
1
2
5
6
3
1
2
6
6
8
5
3
4
1
6
9
6
8
1
2
6
1
2
6
8
9
7
4
6
8
9
2
7
1
6
5
3
1
4
6
8
1
4
6
4
6
7
8
1
4
6
1
4
7
2
1
3
6
9
3
6
8
1
6
1
4
6
8
9
5

Safely remove candidates

We don't have to worry which Cell is which. We can safely remove the from the other Cells on this Row.

All Hints

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the Naked Set on your board.

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