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Evil · Puzzle #525
4
2
1
5
1
3
8
9
4
5
8
7
2
2
7
1
3
8
3
4
2
5
6
Techniques used
- Naked Single
- Hidden Single
- Naked Triple
- Pointing Pair
- Skyscraper
- W-Wing
- 2-String Kite
- Finned X-Wing
- Forcing Chains
- Naked Pair
- XY-Chain
"Mathematics is the art of giving the same name to different things." — Henri Poincaré
"Mathematics is the art of giving the same name to different things." — Henri Poincaré
"The mass of men lead lives of quiet desperation." — Henry David Thoreau
"The mass of men lead lives of quiet desperation." — Henry David Thoreau