Well looking at the rules of Ludo on wikipedia, it says that a roll of a six earns a bonus roll. I did not see where it says in there that the bonus roll MUST be used with the same pieces that the original 6 was moved with, and in addition to that if the bonus roll can not be used, the original 6 is now void.
(Cacher) Si vous souhaitez saluer quelqu'un dans sa langue natale, essayez notre Dictionnaire du Joueur, par le lien "au sujet des langues" sous les drapeaux. (pauloaguia) (Montrer toutes les astuces)