MysteryTwister - The Cipher Challenge Contest

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The Cipher 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 inducted into the Hall of Fame.

Challenges in four levels

Four degrees of difficulty, from pen & paper to complex mathematical problems

chinafish

Solved Level 2 challenge Polyhomophonic Substitution — Part 2

chinafish

Solved Level 2 challenge Polyphonic Substitution Cipher — Part 2

chinafish

Solved Level 2 challenge The LoRa Cipher: Logic Randomness — Part 1

chinafish

Solved Level 2 challenge The Syllabary Cipher – Part 2

chinafish

Solved Level 2 challenge Lightweight Introduction to Lattices — Part 3

chinafish

Solved Level 2 challenge The Hutton Cipher – Part 2

Majspejs

Solved Level 1 challenge The Syllabary Cipher – Part 1

chinafish

Solved Level 1 challenge An 'unhearable' message

Learn, Hack & Connect

Solve challenges and connect with other users on Discord

Challenges in four levels

Four degrees of difficulty, from pen & paper to complex mathematical problems

Enter the Hall of Fame

Master challenges in four levels and secure your spot in the Hall of Fame

Start exploring the challenges

Our 7 most solved challenges

Number Sequence
Level 1

Original Caesar Cipher
Level 1

Number Sequence — Part 2
Level 1

Caesar Encryption
Level 1

Beaver Code
Level 1

Number Sequence — Part 3
Level 1

Letter to the Templars — Part 1
Level 1