Pro Tip

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

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

"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them." — William Lawrence Bragg

Scientific Mind