Live demo
This is the public embed, exactly as your site would load it. Pick a game:
Fill the grid with digits 1 to 9 so that each digit appears exactly once in every row, every column and every 3×3 box.
This is the public embed, exactly as your site would load it. Pick a game:
Fill the grid with digits 1 to 9 so that each digit appears exactly once in every row, every column and every 3×3 box.