MysteryTwister - The Cipher Challenge Contest

Explore Challenges

About MysteryTwister

Community

Account

Contact | Legal Notice | Privacy

The Cipher Challenge Contest

381
Challenges

15,186
Active members

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

H. Lautenschlager

Solved Level 1 challenge An 'unhearable' message

panpsonis

Solved Level 1 challenge Cryptanalysis Hacking Puzzles — Part 2

panpsonis

Solved Level 1 challenge Cryptanalysis Hacking Puzzles — Part 1

Rob

Solved Level 1 challenge Strange Message from Thessaloniki

dprimpas

Solved Level 2 challenge Letter to the Templars — Part 3

DimKrie

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

DimKrie

Solved Level 2 challenge Alice's Birthday Party (Part 1)

dprimpas

Solved Level 1 challenge Number Sequence — 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