PlaySudoku.us
Medium · Puzzle #877
5
9
2
1
4
2
3
8
8
6
1
2
7
3
8
1
9
8
9
5
9
6
8
1
4
8
8
7
4
9
3
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.