Could Germany sustain an advance beyond Moscow if the Soviet Union lost the city?
Short answerProbably not for long. Moscow's loss would hurt Soviet coordination, but German railway logistics also deteriorated with distance and could leave both armies unable to move beyond a new stalemate.
NotesLosing Moscow would damage Soviet rail coordination because the city was a central transport hub. The same geography also limits the attacker. German logistics depended heavily on railways and deteriorated as the army moved farther beyond the stronger networks west of the Soviet interior. Both sides could therefore become unable to support another major advance, producing a stalemate even after a German capture of Moscow.