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Evil · Puzzle #251
7
3
1
1
9
3
2
5
1
9
1
6
4
5
7
8
9
4
1
8
4
2
5
5
4
3
Techniques used
- Naked Single
- Hidden Single
- Naked Pair
- Naked Quad
- Pointing Pair
- Box-Line Reduction
- Skyscraper
- X-Wing
- XY-Wing
- Naked Triple
- W-Wing
- 2-String Kite
- Pointing Triple
- XY-Chain