PlaySudoku.us
Evil · Puzzle #697
4
6
8
2
4
5
9
3
8
7
1
9
4
7
3
1
5
7
3
6
4
2
1
8
7
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.