PlaySudoku.us
Hard · Puzzle #60
1
3
6
4
7
4
2
8
1
3
3
7
4
2
5
4
5
2
7
6
1
6
8
7
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.