PlaySudoku.us
Hard · Puzzle #600
7
8
9
1
3
2
5
6
5
1
8
9
2
4
3
6
2
3
3
8
3
8
6
9
5
4
"Wonder is the beginning of wisdom." — Socrates
"Wonder is the beginning of wisdom." — Socrates
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.