PlaySudoku.us
Hard · Puzzle #251
6
3
4
1
5
2
1
5
2
3
4
5
7
8
6
4
1
2
4
6
5
7
6
3
7
8
5
4
6
5
Every row, column, and box in a completed Sudoku sums to 45 — the sum of digits 1 through 9. This is a useful sanity check.
Every row, column, and box in a completed Sudoku sums to 45 — the sum of digits 1 through 9. This is a useful sanity check.
Every row, column, and box in a completed Sudoku sums to 45 — the sum of digits 1 through 9. This is a useful sanity check.
Every row, column, and box in a completed Sudoku sums to 45 — the sum of digits 1 through 9. This is a useful sanity check.