PlaySudoku.us
Medium · Puzzle #183
7
5
9
6
3
9
5
6
4
1
2
3
7
9
2
1
7
2
9
6
3
4
5
1
4
5
3
2
3
3
5
6
9
Solving Sudoku is NP-complete for an n×n grid. For the standard 9×9, it's fast — but for larger grids, it becomes exponentially harder.
Solving Sudoku is NP-complete for an n×n grid. For the standard 9×9, it's fast — but for larger grids, it becomes exponentially harder.
Solving Sudoku is NP-complete for an n×n grid. For the standard 9×9, it's fast — but for larger grids, it becomes exponentially harder.
Solving Sudoku is NP-complete for an n×n grid. For the standard 9×9, it's fast — but for larger grids, it becomes exponentially harder.