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! 👍
5
2
4
7
9
3
6
4
3
1
8
9
4
7
2
3
1
2
8
5
5
4
7
3
6
9
Champion's Mindset

"Float like a butterfly, sting like a bee. The hands can't hit what the eyes can't see." — Muhammad Ali

Champion's Mindset