The AI can cheat, because it can move a blocking piece out of the way to then attack you in the same turn. Or maybe it's just something to keep in mind, but it caught me off guard.
Oh, I see that now. That makes it so much more interesting as a puzzle. I'll have to try again with that in mind. Got up near 20 but couldn't get past that. Played for like 45 minutes. Super fun!