9
7
6
5
7
6
1
9
3
8
6
5
7
5
9
3
2
7
5
1
9
8
6
4
5
2
4
9
5
6
4
3
2
3
1
9
The Shannon entropy of a Sudoku puzzle decreases as more cells are filled — a measure of how much uncertainty remains.
The Shannon entropy of a Sudoku puzzle decreases as more cells are filled — a measure of how much uncertainty remains.
"Beauty is the first test: there is no permanent place in the world for ugly mathematics." — G. H. Hardy
"Beauty is the first test: there is no permanent place in the world for ugly mathematics." — G. H. Hardy