Math Insight

Every row, column, and box in a completed Sudoku sums to 45 — the sum of digits 1 through 9. A useful sanity check.

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

"Think for yourself and let others enjoy the privilege of doing so too." — Voltaire

Food for Thought