8
9
3
5
6
9
1
4
9
1
8
1
6
7
4
2
3
2
5
8
9
1
9
5
5
3
2
1
7
8
2
5
6
7
5
2
How to play: Fill the 9×9 grid so that every row, column, and 3×3 box contains the digits 1-9.
Gray cells are given numbers that cannot be changed. Click dropdown arrows to select numbers, or use keyboard (1-9 keys, Space/Backspace to clear).