This is a terrible overview of the problem. If general 3 knows it is general 2 saying that general 1 wants to retreat, they can just ignore it. There is no prob

This is a terrible overview of the problem. If general 3 knows it is general 2 saying that general 1 wants to retreat, they can just ignore it. There is no problem. (or general c, b, a respectively, since TFA can't keep their numbering straight) The wikipedia page has a much better overview: https://en.wikipedia.org/wiki/Byzantine_fault#Definition https://en.wikipedia.org/wiki/Byzantine_fault#Definition