3
5
2
9
4
1
2
5
8
3
9
6
1
7
1
5
2
9
4
3
8
1
5
7
4
8
8
2
1
3
6
5
5
8
1
"Quality is not an act, it is a habit." — Aristotle
"Quality is not an act, it is a habit." — Aristotle
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.