Since time immemorial, human beings, after going in search of food and the various supplements necessary for their survival, devoted themselves to rest, exhausted by the arduous tasks of day to day. However, and with the arrival of the technological advances of the time, these tasks were a much easier activity to carry out, so that the free time that remained could be invested in leisure. This is how the different recreational games were born that, to this day, are put into practice to recreate and at the same time, rest from the stress of daily life.
Cryptograms are encrypted messages that, to be discovered, a series of patterns must be followed, using letters or numbers. The method used to hide the phrase is called " substitution cipher ", which consists of supplanting the real symbol or belonging to the body of the message, with a completely different one; the individual who is dedicated to solving the riddle generally does so with the help of reverse substitution. It is because of the aforementioned aspect that cryptography plays an important role in the creation of cryptograms, because it is thanks to this that it is possible to encrypt messages.
It is important to note that cryptograms, in their origins, were not used as a recreation tool, but rather that their purpose was to encrypt and keep military messages secret. It was in the Middle Ages when a certain group of monks undertook the task of designing ingenious games, including cryptograms, popularizing them; This was accentuated when the American writer Edgar Allan Poe and the French writer Jules Verne also included cryptograms in their stories.