Pro Tip

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

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

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

Pro Tip