PlaySudoku.us
Medium · Puzzle #914
5
7
3
8
1
3
1
2
3
2
8
3
4
9
7
1
9
6
2
3
3
6
8
4
8
2
5
1
7
7
4
6
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.
"Chess is everything: art, science, and sport." — Anatoly Karpov
"Chess is everything: art, science, and sport." — Anatoly Karpov