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Evil · Puzzle #987
7
9
5
2
4
8
9
2
1
4
1
9
8
3
2
4
9
7
5
2
7
1
8
1
3
Techniques used
- Hidden Single
- Naked Single
- Naked Pair
- Box-Line Reduction
- W-Wing
- 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