I recruited my 1300 chess.com ( not LiChess ;) ) friend to help me with puzzles 10-12. She wishes there was a grid system, because "A takes B" was ambiguous at times.
I wished I didn't have to double click, until the last puzzle, where I was greeted with the first two white piece puzzle! That mechanic has so much promise, but I would probably tear my hair out trying to design a level with interesting ways of blocking myself from winning, moreso than I did playing the last few levels.
The walls+knight and walls+diagonal-moves mechanics were really cool too!
I must say, a master-class in picking a simple idea, thinking it out before coding, and implementing the core mechanic, with ample time to polish the UX and puzzles before the deadline. I really need to get better at that. I'll keep your game in mind for the next jam.