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Evil · Puzzle #103
1
9
6
2
5
8
4
1
7
3
6
4
8
7
4
7
5
2
5
1
3
2
1
6
Techniques used
- Hidden Single
- Naked Single
- Naked Pair
- Box-Line Reduction
- W-Wing
- UR Type 1
- Forcing Chains
- Finned X-Wing
- Skyscraper
- XY-Wing
- Pointing Pair
- XY-Chain
"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