PlaySudoku.us
Medium · Puzzle #885
2
6
3
4
5
5
7
8
6
8
5
1
9
6
3
8
4
2
8
7
9
5
1
9
7
4
8
9
6
3
5
7
3
4
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.
"We shape our buildings; thereafter they shape us." — Winston Churchill
"We shape our buildings; thereafter they shape us." — Winston Churchill