MysteryTwister - The Cipher Challenge Contest

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The Cipher Challenge Contest

378
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

IhmoZeph

Solved Level 1 challenge The Syllabary Cipher – Part 1

Dr. René Bäder

Solved Level 1 challenge Alberti Challenge — Part 1

IhmoZeph

Solved Level 1 challenge How do you become a big cryptographer?

IhmoZeph

Solved Level 1 challenge A modified homophonic cipher with reduced alphabets — Part 2

Alain

Solved Level 2 challenge Assembly Point – Part 2

Martin Pescador

Solved Level 2 challenge Lattice Part 1

Martin Pescador

Solved Level 2 challenge Lightweight Introduction to Lattices — Part 3

Martin Pescador

Solved Level 1 challenge Lightweight Introduction to Lattices — 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