PlaySudoku.us
Medium · Puzzle #697
3
8
9
3
5
2
9
1
3
8
4
1
3
8
6
1
3
4
9
8
7
7
9
2
6
1
3
9
7
5
1
9
5
8
2
6
A valid Sudoku puzzle has exactly one solution. If it has two or more, it's considered broken.
A valid Sudoku puzzle has exactly one solution. If it has two or more, it's considered broken.
A valid Sudoku puzzle has exactly one solution. If it has two or more, it's considered broken.
A valid Sudoku puzzle has exactly one solution. If it has two or more, it's considered broken.