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The final portion of the book contains the answers to almost all of the clues in the book (including the cipher), and how to solve them. These last pages are sealed together, as the reader is encouraged to try to solve the puzzles themselves first. This sealed section was absent from earlier prints of the book - but was available by mail.
Beale ciphers. The Beale ciphers are a set of three ciphertexts, one of which allegedly states the location of a buried treasure of gold, silver and jewels estimated to be worth over 43 million US dollars as of January 2018. Comprising three ciphertexts, the first (unsolved) text describes the location, the second (solved) ciphertext accounts ...
Kryptos is a distributed sculpture by the American artist Jim Sanborn located on the grounds of the Central Intelligence Agency (CIA) headquarters, the George Bush Center for Intelligence in Langley, Virginia. [ 1] Since its dedication on November 3, 1990, there has been much speculation about the meaning of the four encrypted messages it bears.
Cicada 3301 is the name given to three sets of puzzles posted under the name "3301" online between 2012 and 2014. The first puzzle started on January 4, 2012, [ 1] on 4chan [ 2] and ran for nearly a month. A second round of puzzles began one year later on January 4, 2013, and then a third round following the confirmation of a fresh clue posted ...
Hidden messages on a paper written in invisible ink. Hidden messages distributed, according to a certain rule or key, as smaller parts (e.g. words or letters) among other words of a less suspicious cover text. This particular form of steganography is called a null cipher. Messages written in Morse code on yarn and then knitted into a piece of ...
A cryptogram is a type of puzzle that consists of a short piece of encrypted text. [ 1] Generally the cipher used to encrypt the text is simple enough that the cryptogram can be solved by hand. Substitution ciphers where each letter is replaced by a different letter or number are frequently used. To solve the puzzle, one must recover the ...
The pigpen cipher uses graphical symbols assigned according to a key similar to the above diagram. [1]The pigpen cipher (alternatively referred to as the masonic cipher, Freemason's cipher, Rosicrucian cipher, Napoleon cipher, and tic-tac-toe cipher) [2] [3] is a geometric simple substitution cipher, which exchanges letters for symbols which are fragments of a grid.
The BACH motif. A musical cryptogram is a cryptogrammatic sequence of musical symbols which can be taken to refer to an extra-musical text by some 'logical' relationship, usually between note names and letters. The most common and best known examples result from composers using musically translated versions of their own or their friends' names ...