I think there may just be a mistake in the rules, when describing the limitations. It says, "A tank cannot move to black squares (mines)" and, "Only the commander tank can move to red squares at the center of the board (contamined area)".
I think the word "to" should be replace for "through" in each of those constraints! Is that right?
(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)