PlaySudoku.us
Easy · Puzzle #718
4
8
3
7
1
7
1
8
5
4
2
3
3
5
1
8
9
6
8
6
2
7
3
4
5
7
1
5
3
2
4
3
9
8
6
3
2
8
5
7
1
4
2
9
8
2
1
8
3
4
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.