Pro Tip

Work the most constrained areas first — rows, columns, or boxes that already have the most filled digits.

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

Work the most constrained areas first — rows, columns, or boxes that already have the most filled digits.

Pro Tip