PlaySudoku.us
Medium · Puzzle #105
9
2
5
8
9
3
8
9
3
4
1
7
4
2
6
2
8
4
5
8
7
5
1
3
9
7
4
5
3
6
7
9
4
2
2
6
1
Work the most constrained areas first — rows, columns, or boxes that already have the most filled digits.
Work the most constrained areas first — rows, columns, or boxes that already have the most filled digits.
Work the most constrained areas first — rows, columns, or boxes that already have the most filled digits.
Work the most constrained areas first — rows, columns, or boxes that already have the most filled digits.