In that event, if I'm understanding this correctly, moving a Pawn to b7 should also block the Giraffe. In any event, changing the corner piece from Limping Queen shouldn't be the answer (I'd want to leave that move open as a possibility); you could just switch the Zerdinal and Aviaanca, for example, or have the Giraffe start in a different spot where it can't move to a place that threatens the King.
In that event, if I'm understanding this correctly, moving a Pawn to b7 should also block the Giraffe. In any event, changing the corner piece from Limping Queen shouldn't be the answer (I'd want to leave that move open as a possibility); you could just switch the Zerdinal and Aviaanca, for example, or have the Giraffe start in a different spot where it can't move to a place that threatens the King.