What are 'pieces outside the board'? And how can a Bishop outside the board be 'on a color'? What happens on promotion? What happens when I swap a Pawn to the promotion rank? What happens when I swap one to the initial Pawn rank, will it have a double push?
What are 'pieces outside the board'? And how can a Bishop outside the board be 'on a color'? What happens on promotion? What happens when I swap a Pawn to the promotion rank? What happens when I swap one to the initial Pawn rank, will it have a double push?
The description seems totally inadequate.