PlaySudoku.us
Hard · Puzzle #141
7
4
5
6
7
1
6
4
9
2
6
5
8
7
9
5
1
6
7
4
4
3
5
2
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.