Pro Tip

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

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