Pro Tip

When a box has only two empty cells, you know exactly which two digits fill them.

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

"The more I read, the more I acquire, the more certain I am that I know nothing." — Voltaire

Food for Thought