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Expert · Puzzle #546
5
9
1
8
3
4
4
8
1
7
4
5
9
1
2
6
3
8
6
5
2
4
3
4
7
A solved cell is most useful in whichever house it brings down to one empty cell.
A solved cell is most useful in whichever house it brings down to one empty cell.
Hidden Triple: three digits each appearing in only three cells within a group — eliminate all other candidates from those three cells.
Hidden Triple: three digits each appearing in only three cells within a group — eliminate all other candidates from those three cells.