PlaySudoku.us
Hard · Puzzle #710
3
5
6
1
4
6
7
2
6
2
5
1
6
1
2
3
8
5
7
6
4
7
2
1
1
5
4
2
9
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.
"Chess is the touchstone of intellect." — Johann Wolfgang von Goethe
"Chess is the touchstone of intellect." — Johann Wolfgang von Goethe