PlaySudoku.us
Expert · Puzzle #39
6
8
4
2
5
7
8
3
2
9
8
4
6
5
8
9
4
2
9
4
8
7
6
2
1
7
6
"The key is to keep company only with people who uplift you, whose presence calls forth your best." — Epictetus
"The key is to keep company only with people who uplift you, whose presence calls forth your best." — Epictetus
Solving Sudoku is NP-complete for an n×n grid. For the standard 9×9, it's fast — but larger grids become exponentially harder.
Solving Sudoku is NP-complete for an n×n grid. For the standard 9×9, it's fast — but larger grids become exponentially harder.