Pro Tip

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

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

"And yet it moves." — Galileo Galilei

Food for Thought