Challenge Yourself

Can you identify the technique needed to make the next move before filling in any digit? Name it, then use it.

Challenge Yourself
✓ Completed! 👍
7
2
8
1
5
3
6
2
4
8
1
5
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9
5
3
3
9
8
2
6
6
7
3
4
1
8
6
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7
3
6
Challenge Yourself

Can you identify the technique needed to make the next move before filling in any digit? Name it, then use it.

Challenge Yourself