PlaySudoku.us
Evil · Puzzle #545
5
3
8
8
6
9
8
4
7
3
1
9
7
2
2
7
5
1
6
7
5
6
3
1
"An investment in knowledge pays the best interest." — Benjamin Franklin
"An investment in knowledge pays the best interest." — Benjamin Franklin
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.