Thank you so much for your detailed feedback! We deeply appreciate that!
We have been receiving feedback about the lack of comprehensibility from the UI. For the upcoming update, which might include Linux/MAC/Android version, we will try to improve the visual indication of the puzzles, as well as telling the total number of puzzles to the player in advance.
We have put a lot of effort into this game, and we are so happy reading your feedback again and again. Thanks again for your kind words, Sisyphean Games!