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cryptogramcorner.org

a daily cryptogram and links to related sites.

guballa.de

schach, geocaching und klassische verschlüsselungen...

cryptoquipanswer.com

Help and solution to the daily Cryptoquip Puzzle!

youngtyros.com

Caesar’s cryptic messaging with a simple alphabet shift soon became obvious to the least experienced cipher analysts. A fresh approach was needed. Let’s begin to look at the world of  the simple su…

boxentriq.com

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ciphertools.co.uk

get ciphers cracked automatically, with the cracked texts presented in the words of their original language (english, french or german). either copy in your own ciphertext or get the website to set you a random ciphertext with varying lelves of difficulty. ciphertools also lets you create your own ciphers, and provides a full set of instructions and tips for cracking ciphers. ciphertools also features a working enigma and bombe machine so that you can decrypt enigma messages.

dcode.fr

Outil pour décomposer un nombre en produit de facteurs premiers (toute taille, sans limite), décomposition comme multiplication de nombres premiers qui est unique pour tous les nombres entiers.

cryptograms.puzzlebaron.com

if you love to solve cryptograms, try us out! compete with players from around the world to solve more than 50,000 unique cryptogram puzzles for free.