Pro Tip

Box-Line Reduction: if all candidates for a digit in a row or column are within one box, eliminate that digit from the rest of the box.

Pro Tip
✓ Completed! 👍
6
5
8
3
9
5
2
4
7
3
8
6
4
2
1
6
3
4
6
1
6
1
4
7
5
3
2
7
3
1
4
4
1
2
Pro Tip

Box-Line Reduction: if all candidates for a digit in a row or column are within one box, eliminate that digit from the rest of the box.

Pro Tip