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Evil · Puzzle #296
2
5
9
7
3
1
9
9
8
1
6
5
1
8
4
2
5
7
8
9
2
4
6
5
Techniques used
- Hidden Single
- Naked Pair
- Naked Triple
- Pointing Pair
- Skyscraper
- Forcing Chains
- Naked Single
- Naked Quad
- Pointing Triple
- Box-Line Reduction
- W-Wing
- 2-String Kite
- UR Type 4
- XY-Chain