MysteryTwister - The Cipher Challenge Contest

Explore Challenges

About MysteryTwister

Community

Account

Contact | Legal Notice | Privacy

The Cipher Challenge Contest

376
Challenges

14,589
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

Emanuele

Solved Level 2 challenge Double Column Transposition — Part 1

Mahmood Tavafoghi

Solved Level 3 challenge The SIGABA Challenge — Part 3

Mahmood Tavafoghi

Solved Level 2 challenge The SIGABA Challenge — Part 2

Michel Van Caneghem

Solved Level 1 challenge Alberti Challenge — Part 1

Emanuele

Solved Level 2 challenge ASAC — A Strong(er) ADFGVX Cipher — Part 3

Michel Van Caneghem

Solved Level 1 challenge Autokey Cipher

Michel Van Caneghem

Solved Level 2 challenge Homophonic Encryption — Part 2

Michel Van Caneghem

Solved Level 1 challenge Number Sequence — Part 6

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