PlaySudoku.us
Expert · Puzzle #223
5
1
4
4
5
7
6
2
6
4
1
9
2
7
1
2
4
6
8
9
6
8
9
3
5
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.