PlaySudoku.us
Easy · Puzzle #538
9
5
2
4
3
1
8
3
7
1
4
2
5
1
6
5
8
3
7
3
6
5
6
9
2
8
3
5
2
9
1
7
8
2
9
6
1
4
5
2
9
6
1
5
7
3
9
4
2
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.