PlaySudoku.us
Expert · Puzzle #359
2
8
4
5
7
6
5
8
2
5
1
8
4
8
9
2
1
7
4
9
6
4
1
3
2
"Whatever you are, be a good one." — Abraham Lincoln
"Whatever you are, be a good one." — Abraham Lincoln
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.