PlaySudoku.us
Hard · Puzzle #994
2
9
8
2
3
4
5
7
1
6
7
2
9
8
4
9
2
6
4
1
3
8
9
2
1
2
7
6
8
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.