PlaySudoku.us
Medium · Puzzle #621
1
3
5
9
6
9
8
4
1
6
2
4
8
8
5
9
1
7
6
7
8
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9
4
1
2
8
2
7
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9
"Perfection is not attainable, but if we chase perfection we can catch excellence." — Vince Lombardi
"Perfection is not attainable, but if we chase perfection we can catch excellence." — Vince Lombardi
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.