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Evil · Puzzle #537
1
5
4
3
1
4
2
9
8
6
2
1
5
1
9
8
4
7
8
3
2
7
1
9
6
4
Techniques used
- Naked Single
- Hidden Single
- Naked Quad
- Pointing Pair
- Skyscraper
- XY-Wing
- Forcing Chains
- Naked Triple
- Box-Line Reduction
- Naked Pair
- 2-String Kite
- Simple Coloring
- XY-Chain