I love the concept, and I also love Sudoku games! It was such a fun challenge, and now I can’t stop playing ^^
At first, I wasn’t quite sure how the Sudoku was supposed to be played, so I just clicked around and figured things out as I went. Maybe having a small visual “How to Play” guide showing how each game works and which controls to use in the first rounds could be helpful. That said, discovering these things through trial and error is also part of the fun, so I really enjoyed figuring everything out as I played as well!
Really fun and enjoyable game. Great job! :D