PlaySudoku.us
Easy · Puzzle #659
5
9
1
2
6
7
7
6
9
5
2
8
6
5
7
4
1
4
8
9
2
7
8
9
4
5
6
2
1
3
6
2
8
5
1
1
8
6
3
4
7
5
1
2
8
6
"The first principle is that you must not fool yourself — and you are the easiest person to fool." — Richard Feynman
"The first principle is that you must not fool yourself — and you are the easiest person to fool." — Richard Feynman
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.