PlaySudoku.us
Evil · Puzzle #587
2
9
6
9
8
1
5
2
4
3
6
5
9
4
8
1
5
3
1
4
1
7
4
9
5
Techniques used
- Hidden Single
- 2-String Kite
- Finned X-Wing
- Forcing Chains
- Naked Pair
- Naked Single
- Pointing Pair
- Skyscraper
- Box-Line Reduction
- XY-Wing
- W-Wing
- X-Wing