PlaySudoku.us
Easy · Puzzle #472
6
5
1
7
5
6
8
7
4
2
9
7
2
5
3
6
4
2
7
4
1
5
2
6
3
3
5
6
9
7
1
7
3
9
5
1
8
2
2
4
6
8
3
9
8
9
3
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.
Solving Sudoku exercises the prefrontal cortex — the brain region responsible for planning and decision-making.
Solving Sudoku exercises the prefrontal cortex — the brain region responsible for planning and decision-making.