PlaySudoku.us
Expert · Puzzle #446
5
6
4
3
1
5
8
9
7
7
4
2
8
1
7
5
4
6
4
9
8
3
7
2
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.
"The most powerful weapon in chess is to have the next move." — David Bronstein
"The most powerful weapon in chess is to have the next move." — David Bronstein