PlaySudoku.us
Easy · Puzzle #420
2
5
9
3
7
5
4
2
4
3
1
8
9
6
2
4
8
5
4
5
7
9
6
8
8
5
9
6
7
5
6
9
3
4
1
8
9
5
3
7
2
1
8
9
5
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.