Suchergebnisse für „25“

Two more bottle posts have been found in Hamburg, Germany. Still, nobody seems to have a clue what these strange messages mean.

Earlier this week, I blogged about two encpostcards sent to a Bavarian princess. My blog readers solved all the mysteries about these documents.

In Canberra, Australia, there is a set of eight steel pillars bearing encrypted inscriptions. So far, they have not received much attention in the codebreaking community. Some of the cryptograms are still unsolved.

Message B, a ciphertext left behind by British parapsychologist Robert Thouless, baffled codebreakers for over 70 years. Richard Bean from Brisbane, Australia, has now broken it.

In July, I introduced a bigram substitution challenge consisting of 1346 letters. Norbert Biermann has now solved it. It’s the shortest ciphertext of this kind that has ever been broken.

Earlier this week, I blogged about an encrypted newspaper ad from 1897. Seth Kintigh from Massachusetts has solved it.

In 1897, an unknown person published an encrypted advertisement in the Daily Telegraph. The only two words left in the clear are JIM LOCKET. Can a reader break this cryptogram?

British author Lady Gwendolen Gascoyne-Cecil encrypted a passage in her diary. This cryptogram has never been solved.

Over two decades ago, a series of strange messages were spread in the Usenet. Their origin and purpose are still a mystery.

Scottish poet Thomas Urquhart (1611-1660) left behind two unsolved cryptograms. Along with many others, they are listed on a website maintained by Eugen Antal.