Thanks for the feedback.
I fixed a bug with those buttons a few days ago and thought the same. Maybe I'll just go with a resize or a little color switch for now.
The other part with the feedback is already on my to-do. I planned to show the last move of the opponent, so you can see where he could escape.
And for the puzzles...they are in fact random. I just decided how many mates per puzzle and the algo gets it from a db.
My first idea was exactly like that. I wanted to make worlds with different themes, like openings or endings and put more focus on the different chess tactics...but I can't play chess (or couldn't until I began with this game), so learning all these things is way out of scope for me.
In the end I switched to a randomized but endless version of weekly new puzzles.
Maybe if when this game is finished and I someday meet a chess player who wants to create the puzzles the original idea would get a new approach.
