British parapsychologist Robert Thouless published a cryptogram and tried to transmitt the key after his death. I have started a similar experiment – based on modern cryptography.


British psychologist and parapsychologist Robert Thouless (1894-1984) published a short cryptogram. He intended to channel the key after his decease from the realm of the dead. So far, this experiment has failed. Thouless’ cryptogram is still unsolved.


My recent article about Brazilian student Bruno Borges, who has mysteriously vanished and has left behind encrypted notes, has attracted much attention. Most of Borges’ notes seem to be deciphered. However, there is at least one passage that still waits to be solved.


In the end credits of the movie Fair Game (2010) some letters are marked yellow. Do they form a code? If so, the solution is unknown.


In 1948 an encrypted telegram was sent  from New York to Tel Aviv, Israel. Can a reader break this encryption?


An 18th century monument in Shugborough Hall near Birmingham, UK, bears an inscription consisting of ten letters. This message is one of the world’s most famous unsolved ciphertexts.


Bruno Borges, a Brazilian student who has been working on an “alien project”, has mysteriously vanished from his home. In his room he left behind numerous encrypted notes. Can a reader break his code?


The Riverbanks Ripper was a serial murderer, who killed nine people in the 1970s. He was never identified. At one of the crime scenes he left behind an encrypted note that is unsolved to date.


In 1907 an encrypted postcard was sent from Box, UK, to nearby Chippenham. Can a reader decipher this note?


Today I’m going to report about an unsolved encrypted document created five centuries ago and now owned by the Beinecke Library in Connecticut. And no, I’m not talking about the Voynich manuscript.