You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
They can see which numbers are in which envelopes, but they're not permitted to change the envelopes in any way which would communicate anything to the next prisoner.
I should clarify: Each prisoner can see which numbers are in the fifty envelopes each is allowed to open. (And they therefore know the other fifty numbers are distributed among the other fifty envelopes.)
Is there some Monty Hall-esque solution to this?
I think you could claim that the solution is Monty Hall-esque.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.
