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Locked Candidate

Easy

When in a , are in the same too, we can safely make in the box.

How it works

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

Check each Row and Column

In this Row there are only two Cells that can be 9.

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

One has to be 9

Every Row must have a 9, so we can be certain one of the 9's is correct.

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

Same Box

All 9's are in the same too.

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

Eliminate other 9s in the box

Since we know that the 9 is in the Row. We can safely remove other 9s from the Box.

All Hints

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the Locked Candidate on your board.

Next up

Pointing Pair or TripleEasy