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.
(esconder) Apetece-lhe um jogo rápido que termine garantidamente em 2 horas? Crie um novo jogo segundo as suas preferências e marque o controlo de tempo para 0 dias/1 hora, Bonus 0 dias/0 dias e Limite para 0 dias/1 hora. (TeamBundy) (mostrar todas as dicas)