PlaySudoku.us
Medium · Puzzle #778
7
6
2
8
3
8
4
5
3
6
4
4
9
1
1
3
4
9
5
2
9
6
6
4
9
8
7
2
6
7
4
9
7
5
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.