PlaySudoku.us
Expert · Puzzle #252
7
8
8
1
5
9
1
5
4
4
9
1
6
3
2
9
4
3
5
2
8
7
5
6
Techniques used
- Hidden Single
- Naked Single
- Naked Pair
- Naked Triple
- Naked Quad
- Pointing Pair
- XY-Wing
- XY-Chain
"Doubt is not a pleasant condition, but certainty is an absurd one." — Voltaire
"Doubt is not a pleasant condition, but certainty is an absurd one." — Voltaire
"In the midst of chaos, there is also opportunity." — Sun Tzu
"In the midst of chaos, there is also opportunity." — Sun Tzu