PlaySudoku.us
Hard · Puzzle #180
2
9
1
6
4
3
1
3
7
3
1
9
6
2
3
4
9
6
1
7
9
4
3
5
1
4
9
4
7
3
If pointing pairs aren't visible, try box-line reduction. They're inverses — if one fails, try the other.
If pointing pairs aren't visible, try box-line reduction. They're inverses — if one fails, try the other.
"The mind is not a vessel to be filled, but a fire to be kindled." — Plutarch
"The mind is not a vessel to be filled, but a fire to be kindled." — Plutarch