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Evil · Puzzle #219
2
5
3
4
7
8
5
8
3
2
1
8
6
9
6
2
1
4
5
3
8
8
2
6
9
Techniques used
- Hidden Single
- Pointing Pair
- Naked Single
- Naked Pair
- Skyscraper
- 2-String Kite
- W-Wing
- XY-Chain
- Forcing Chains
"Science is the great antidote to the poison of enthusiasm and superstition." — Adam Smith
"Science is the great antidote to the poison of enthusiasm and superstition." — Adam Smith
"Beauty is the first test: there is no permanent place in the world for ugly mathematics." — G. H. Hardy
"Beauty is the first test: there is no permanent place in the world for ugly mathematics." — G. H. Hardy