Is it that a piece must be located on certain ranks to attack the King? Or is it that crossing the borderline results in a promotion that allows the piece to attack the King from anywhere on the board?
The former is the case. The possibility to attack is only possible beyond the borderline. Crossing the borderline has nothing to do with a promotion, which then applies to the entire board. The possibility to attack corresponds exclusively with the ranks 5-7 or 1-3.
The former is the case. The possibility to attack is only possible beyond the borderline. Crossing the borderline has nothing to do with a promotion, which then applies to the entire board. The possibility to attack corresponds exclusively with the ranks 5-7 or 1-3.