PlaySudoku.us
Expert · Puzzle #598
2
7
6
5
4
8
3
4
1
8
6
9
7
3
9
6
8
8
4
3
4
7
6
9
2
"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.