PlaySudoku.us
Easy · Puzzle #673
9
6
4
3
8
3
5
7
1
8
9
6
4
6
2
8
1
7
9
7
1
2
6
9
4
9
8
3
1
2
5
4
2
9
6
7
3
1
1
7
8
2
9
6
8
3
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.