PlaySudoku.us
Easy · Puzzle #475
9
2
3
8
1
9
7
5
1
2
5
3
9
4
8
4
6
3
8
9
1
6
5
4
3
5
1
7
4
6
8
9
7
5
4
6
8
1
9
8
2
2
6
1
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.