PlaySudoku.us
Medium · Puzzle #251
5
4
3
7
4
8
6
2
6
1
5
8
6
5
2
1
3
3
5
9
1
7
3
6
1
7
8
6
2
5
8
4
7
6
3
2
"The greatest enemy of knowledge is not ignorance; it is the illusion of knowledge." — Stephen Hawking
"The greatest enemy of knowledge is not ignorance; it is the illusion of knowledge." — Stephen Hawking
Every row, column, and box in a completed Sudoku sums to 45 — the sum of digits 1 through 9. A useful sanity check.
Every row, column, and box in a completed Sudoku sums to 45 — the sum of digits 1 through 9. A useful sanity check.