PlaySudoku.us
Medium · Puzzle #735
5
6
4
9
8
4
9
2
1
4
9
1
2
3
4
6
5
4
8
2
1
4
6
3
7
3
1
2
8
6
7
5
8
7
1
6
3
"If you want to be happy, be." — Leo Tolstoy
"If you want to be happy, be." — Leo Tolstoy
Some hospitals use Sudoku as a cognitive exercise for patients recovering from strokes or brain injuries.
Some hospitals use Sudoku as a cognitive exercise for patients recovering from strokes or brain injuries.