Pro Tip

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

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

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

Pro Tip