PlaySudoku.us
Evil · Puzzle #246
8
5
4
8
3
6
9
3
2
1
6
6
4
8
1
9
4
9
2
8
5
2
9
3
Techniques used
- Hidden Single
- Naked Quad
- Pointing Pair
- W-Wing
- Finned X-Wing
- Forcing Chains
- Naked Single
- Box-Line Reduction
- UR Type 4
"Music is the pleasure the human mind experiences from counting without being aware that it is counting." — Gottfried Wilhelm Leibniz
"Music is the pleasure the human mind experiences from counting without being aware that it is counting." — Gottfried Wilhelm Leibniz
The P vs. NP problem — the biggest open question in computer science — would be impacted if Sudoku generalizations could be solved in polynomial time.
The P vs. NP problem — the biggest open question in computer science — would be impacted if Sudoku generalizations could be solved in polynomial time.