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Hard · Puzzle #796
8
5
6
4
9
2
6
2
3
1
6
4
5
8
4
1
5
8
2
6
9
1
2
4
3
6
8
2
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.