PlaySudoku.us
Medium · Puzzle #294
7
5
8
2
4
6
4
7
8
4
6
7
1
9
9
6
2
6
3
9
4
8
9
5
3
7
1
9
8
9
8
5
6
1
"Those who cannot remember the past are condemned to repeat it." — George Santayana
"Those who cannot remember the past are condemned to repeat it." — George Santayana
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.