Fencer: So I can promote a pawn only to a piece which is contained in the opponent's prison? And the promoting pawn goes to the opponent's prison, being exchanged for the piece to promote to?
That's my reading of the rules as well, and, in my opinion, it's a sensible way of dealing with promotions.
(gem) Hvis du er interesseret i udviklingen af en turnering du spiller i, kan du diskutere med dine modspillere i denne turnerings forum. (HelenaTanein) (vis alle tips)