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The CODEBREAKERS.EU cryptology game — 4th edition

On June 1st, 2015 begins a "fantastic game" starting with the 1st of six tasks on the Enigma level.
The material to be studied is published twice a week, but the time in which you work out the final tasks matters the most.
The game on this level lasts till June 19th. Hints, time bonuses and "cryptologic bombs" help you to go ahead.

If you don’t know much about cryptology or cryptography and you are afraid you won’t do fine at the Enigma level, you can get to know some less complicated cryptological issues and practice your skills by playing the basic or advanced levels of our game.

"During the game everyone can find out what methods were used to beat Enigma as well as try to break messages encoded with the famous machine cipher. Enigma, a cipher machine considered unbreakable, was defeated by three brilliant mathematicians. Now, together with other adventurers from around the world, you have a chance to become an Enigma codebreaker."

To participate just register as a 3-person team at

powered by the CrypTool project  CrypTool


   +++    [00:16 - 12.08.2020] Polaris solved the Level I challenge 'Image Noise'    +++    [00:10 - 12.08.2020] Polaris solved the Level I challenge 'From Russia with Love'    +++    [16:38 - 11.08.2020] kshepherd solved the Level I challenge 'Snow White and the seven dwarfs'    +++    [03:02 - 11.08.2020] noother solved the Level III challenge 'RSA Factoring Challenge: RSA-250'    +++    [02:53 - 11.08.2020] noother solved the Level II challenge 'RSA Factoring Challenge: RSA-210'    +++