PlaySudoku.us
Hard · Puzzle #230
8
7
1
4
2
3
7
9
5
6
5
8
3
2
5
4
3
9
4
3
5
8
1
6
5
2
3
The minimum number of clues needed to create a valid Sudoku with a unique solution is 17.
The minimum number of clues needed to create a valid Sudoku with a unique solution is 17.
The minimum number of clues needed to create a valid Sudoku with a unique solution is 17.
The minimum number of clues needed to create a valid Sudoku with a unique solution is 17.