PlaySudoku.us
Evil · Puzzle #271
9
5
8
5
1
4
4
6
2
7
5
7
8
4
5
2
9
8
7
2
1
4
3
7
5
Techniques used
- Naked Single
- Hidden Pair
- Pointing Pair
- 2-String Kite
- Forcing Chains
- Naked Pair
- UR Type 1
- Hidden Single
- Naked Triple
- Box-Line Reduction
- W-Wing
- XY-Chain