Just got done completing all the available levels. Although there seemed to be many ways to solve these, so i guess there is lot of replay value.

Zodiac pieces made the game more interesting for sure. Do you plan to make levels with different zodiac pieces mixed together?

On classic level 25 hint screen was blocking part of the board, making knight hidden.
Kinda wish screen was bit bigger. I understand that this was originally made for mobile, but in the bigger boards some of the lines were not fully visible.

Just played 10 or so levels. It's kind of nice, like learning chess basics without having the whole board!

One piece of UI feedback - when loading the tutorial cards, the first time or when the level loads, it's doing something weird as it expands. Happened too fast for me to see exactly what but it's like a margin is changing while it expands.  But if you view the card again, it doesn't do that, only on the first load or reload of a level.

Is there a way to tell how far you've progressed? I sort of lost the sense of where I was which is why I stopped playing after ~10 levels.