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The Crypto Challenge Contest
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- Challenges
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You like riddles? Then this is your place!
MysteryTwister is a cipher contest, where you can solve cryptographic riddles (challenges) of different difficulty levels. If you are successful, you will be immortalized in the Hall of Fame.Challenges in four levels
Four degrees of difficulty, from pen & paper to complex mathematical problems
Challenge your knowledge
MysteryTwister challenges your knowledge in cryptography and let's you explore new areas