I'm really glad you like it! Thank you for playing! Automatic goal checking, sound, and music are for sure all things I'd like to address in the future :)
Nope, not a bug, that's exactly what it was supposed to do! When the game checks to see if you failed, it checks to see if you're on the goal first, I figured it'd be pretty infuriating to reach the goal within the amount of moves, and still fail