4
3
1
8
6
5
8
3
7
3
5
2
7
8
3
1
7
2
6
3
8
2
1
8
6
4
9
5
5
6
8
2
7
5
1
"Thinking is the talking of the soul with itself." — Plato
"Thinking is the talking of the soul with itself." — Plato
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.