Pro Tip

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

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

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

Pro Tip