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Evil · Puzzle #583
6
7
8
9
2
3
2
4
5
2
8
4
1
7
6
1
5
3
2
9
4
8
5
7
9
Techniques used
- Hidden Single
- Naked Pair
- Pointing Pair
- Box-Line Reduction
- Finned X-Wing
- XY-Chain
- Forcing Chains
- Naked Single
- 2-String Kite
- Skyscraper
- W-Wing
- X-Wing