I have two valid addresses myself, in the same
house but different households - the effort seems
fuzzy as IP tracking is undermined by local network
and all the fancy stuff from my treasure chest of
sophisticated programs making an apple a prune.

Let's say it stiff ... superficial nonsense !

Robert J. Fisher made it although the Russians
evidently cheated by making easy draws against
each other while focussing against capitalism ... :D

Kasparov made it although Karpov cheated by occupying
the mental capacities of thirteen grandmasters and their ideas
which to use they were not allowed without first offering to him,
in the time of a desired lasting soviet chess dynasty ...

Sportsmen have always had only two secundants throughout history,
of course only for the daily game-aftermath ... ~*~