7
4
1
6
4
5
3
7
1
3
5
7
8
6
2
8
2
6
4
9
3
8
5
4
6
2
7
5
2
3
8
8
6
5
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.
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.