PlaySudoku.us
Expert · Puzzle #20
8
2
4
5
1
5
1
9
6
8
5
1
6
2
7
2
6
9
6
7
6
9
3
5
7
On average, a hard Sudoku requires 50–100 candidate eliminations before the grid is fully solved.
On average, a hard Sudoku requires 50–100 candidate eliminations before the grid is fully solved.
"Impossible is not a fact. It's an opinion. Impossible is not a declaration. It's a dare." — Muhammad Ali
"Impossible is not a fact. It's an opinion. Impossible is not a declaration. It's a dare." — Muhammad Ali