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Evil · Puzzle #598
2
6
4
7
5
6
8
2
1
9
3
2
6
4
9
5
2
3
6
7
9
5
7
4
9
8
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.