PlaySudoku.us
Easy · Puzzle #29
9
8
3
6
7
7
7
6
1
4
8
3
1
5
7
6
2
4
9
1
5
3
8
2
9
3
5
4
6
9
1
4
2
7
5
8
9
1
8
9
3
2
5
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.