PlaySudoku.us
Expert · Puzzle #391
6
8
4
9
5
5
3
6
2
3
4
2
5
1
6
7
2
7
6
1
2
5
9
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.
"Believe you can and you're halfway there." — Theodore Roosevelt
"Believe you can and you're halfway there." — Theodore Roosevelt