PlaySudoku.us
Hard · Puzzle #817
1
3
3
8
2
6
5
4
8
3
7
2
4
6
8
1
5
8
7
7
2
1
8
3
6
3
6
2
5
The minimum number of clues (17) needed for a unique Sudoku was proved by exhaustive computer search in 2012.
The minimum number of clues (17) needed for a unique Sudoku was proved by exhaustive computer search in 2012.
"To enjoy good health, to bring true happiness to one's family, to bring peace to all, one must first discipline and control one's own mind." — Buddha
"To enjoy good health, to bring true happiness to one's family, to bring peace to all, one must first discipline and control one's own mind." — Buddha