SUPER BUGGED AND BROKEN: Ghost pieces + gold tiles = permanent pieces (and weird stuff)
So, you can get permanent pieces by turning ghosts into gold. But I've been getting a bug where sometimes the the pieces can't move because there are 2 pieces in the same tile (you can see on the video, there is a queen i can't move). I think this happens because I turned the ghost created by the gambit that makes a ghost copy when landing, since this ignores the piece cap. So you can end the game with pieces over the cap on board. When it recollects your pieces at the end of the game some even stay on enemy side. If your piece is over an enemy piece you can still capture it but can't move your own piece and enemy can't capture it, making you nearly invincible (while you aren't against hikaru, you still have pieces to place and rumble doesn't throw that tile).
Still this combo is so brocken that the first thing I tend to do is have a ghost tile and a gold tile early so I can farm an extra piece.
I guess this will be fixed by making gold ghosts despawn at the end of game (unless this was intended).