Feedback needed

I changed the name. I think this is one of the best free versions of Sudoku available to play in the browser without any ads, so I chose the name Sudoku Free to reflect that. If you’d like any features or changes, let me know. I think this is as close to a perfectly polished product as it can be, but I could be wrong, so I’d love to hear your thoughts. I appreciate any feedback or comments. Thank you for playing.