Pro Tip

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

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

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

Pro Tip