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

Michel Van Caneghem

Solved Level 1 challenge Merkle-Hellman Knapsack Challenge - Part 1

Michel Van Caneghem

Solved Level 1 challenge Bigram Substitution – Part 1 (Tutorial)

Michel Van Caneghem

Solved Level 1 challenge A disguised code

Michel Van Caneghem

Solved Level 1 challenge A hidden word — Part 2

xiaozhuan

Solved Level 2 challenge Lightweight Introduction to Lattices — Part 3

Emanuele

Solved Level 1 challenge Zodiac Cipher

SAM

Solved Level 1 challenge Number Sequence

Patrick Foster

Solved Level 2 challenge Double Column Transposition — Part 4

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