PlaySudoku.us
Easy · Puzzle #531
7
5
6
5
9
2
3
1
7
4
5
1
9
1
2
4
3
7
8
4
7
8
6
1
5
3
9
2
2
8
9
7
1
7
6
4
9
5
1
9
4
8
2
6
9
"Chess is the touchstone of intellect." — Johann Wolfgang von Goethe
"Chess is the touchstone of intellect." — Johann Wolfgang von Goethe
When a box has only two empty cells, you know exactly which two digits fill them.
When a box has only two empty cells, you know exactly which two digits fill them.