PlaySudoku.us
Evil · Puzzle #877
4
5
8
3
8
7
9
7
3
4
2
7
6
4
5
2
9
7
8
8
4
2
9
3
7
6
Techniques used
- Hidden Single
- Naked Single
- Naked Pair
- Pointing Pair
- Box-Line Reduction
- XY-Wing
- Finned X-Wing
- Forcing Chains
- Naked Triple
- W-Wing
- XY-Chain
Puzzle-solving is used as therapy for anxiety: the focused concentration it requires quiets the mind's rumination.
Puzzle-solving is used as therapy for anxiety: the focused concentration it requires quiets the mind's rumination.
A solved cell is most useful in whichever house it brings down to one empty cell.
A solved cell is most useful in whichever house it brings down to one empty cell.