PlaySudoku.us
Hard · Puzzle #14
5
2
5
9
3
6
1
4
8
7
9
2
1
2
1
5
4
6
8
1
2
9
7
4
6
2
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.