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

Dr. René Bäder

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

Dr. René Bäder

Solved Level 1 challenge Assembly Point – Part 1

Werland

Solved Level 1 challenge Number Sequence — Part 10

Werland

Solved Level 1 challenge Factorization Cipher — Part 1

Werland

Solved Level 1 challenge Double Columnar Transposition

Werland

Solved Level 1 challenge Affine Codes / Modulo Arithmetic with N / Extended Euclid

Werland

Solved Level 1 challenge ADFGVX — Part 1

E42314014

Solved Level 2 challenge Alice's Birthday Party (Part 2)

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