Pro Tip

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

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

"When you see a good move, look for a better one." — Emanuel Lasker

Chess Wisdom