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Evil · Puzzle #877
4
5
8
3
8
7
9
7
3
4
2
7
6
4
5
2
9
7
8
8
4
2
9
3
7
6
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.