PlaySudoku.us
Evil · Puzzle #312
4
7
3
9
6
4
8
1
7
9
2
4
8
6
8
2
4
3
7
6
3
6
9
4
1
Techniques used
- Hidden Single
- Naked Single
- Naked Pair
- W-Wing
- Skyscraper
- Box-Line Reduction
- XY-Chain
"What is a proof? It is a demonstration that a statement is necessarily true — a guarantee that no exception can exist." — Henri Poincaré
"What is a proof? It is a demonstration that a statement is necessarily true — a guarantee that no exception can exist." — Henri Poincaré
"The man who asks a question is a fool for a minute, the man who does not ask is a fool for life." — Confucius
"The man who asks a question is a fool for a minute, the man who does not ask is a fool for life." — Confucius