PlaySudoku.us
Hard · Puzzle #504
1
8
2
3
9
9
2
7
4
6
1
8
2
7
2
7
8
6
5
3
2
3
4
6
8
5
9
4
5
9
3
Counting the number of Sudoku solutions for a given puzzle is #P-complete — computationally harder than NP-complete.
Counting the number of Sudoku solutions for a given puzzle is #P-complete — computationally harder than NP-complete.
"Make each day your masterpiece." — John Wooden
"Make each day your masterpiece." — John Wooden