PlaySudoku.us
Expert · Puzzle #943
6
9
3
1
1
7
2
6
9
3
5
8
6
1
7
7
5
9
8
4
2
9
4
8
3
1
7
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.
"It's not that I'm so smart, it's just that I stay with problems longer." — Albert Einstein
"It's not that I'm so smart, it's just that I stay with problems longer." — Albert Einstein