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Evil · Puzzle #757
5
9
3
2
2
7
9
8
2
8
9
1
6
5
2
4
5
1
4
3
7
6
1
4
Techniques used
- Naked Single
- Hidden Single
- Pointing Pair
- Pointing Triple
- Box-Line Reduction
- Naked Triple
- Forcing Chains
- XY-Chain
- W-Wing
- Simple Coloring
- Naked Pair
- XY-Wing