PlaySudoku.us
Easy · Puzzle #817
6
3
7
4
8
1
7
8
6
5
4
3
9
4
2
1
7
5
6
6
8
9
1
3
4
1
8
9
6
5
5
9
1
6
3
7
8
9
7
5
6
5
1
4
9
7
4
7
3
1
5
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.