PlaySudoku.us
Evil · Puzzle #359
4
2
6
5
3
1
8
6
4
9
6
9
4
6
3
2
7
2
1
4
6
5
3
1
6
8
Techniques used
- Naked Single
- Hidden Single
- Naked Pair
- Naked Quad
- Pointing Pair
- Finned X-Wing
- Forcing Chains
- Naked Triple
- Box-Line Reduction
- XY-Wing
- W-Wing
- XY-Chain