I am pretty sure I never cheated when I caught him and managed to win the game and it was still the same 'bad end'

opponent moved my queen accused false accusation video evidence here https://www.youtube.com/watch?v=_XwaMzEOcsg

Am I right in assuming this does nothing to teach you chess and possibly confuse me even more? I know the basics but really want to learn in a fun way. If this game is it, it would be an instant buy. If not, any recommendations? Thanks in advance!

What's the deal with combining these units? And when can you move them without cheating?

Is the juggler achievement currently bugged? I feel like I should've gotten it about 4 times now but it just doesn't trigger? Are there some strange interactions between it and the revenge cheat mechanic? Does "same piece" refer to a piece type or a specific one on the board (can I move a light squared bishop directly after the dark squared one)? I'm aware that the goblin will have a voice line if you mess up, but it needs some moves with adhering to the challange's rules, how many moves does it require?...