PlaySudoku.us
Easy · Puzzle #619
3
5
2
6
7
3
9
1
1
3
9
4
2
3
2
8
7
6
8
4
1
2
4
9
5
7
6
8
4
6
7
1
3
6
3
9
4
8
2
3
1
8
2
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.