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

jgamblin

Solved Level 2 challenge Monoalphabetic Substitution with Nostradamus Flavor

jgamblin

Solved Level 2 challenge Differential Cryptanalysis — Part 2

jgamblin

Solved Level 2 challenge Christmas Challenge 2019: Differential Cryptanalysis — Part 1

jgamblin

Solved Level 2 challenge Holographic Encryption — Part 1

jgamblin

Solved Level 2 challenge Spanish Strip Cipher — Part 2

jgamblin

Solved Level 2 challenge Homophonic Encryption — Part 2

jgamblin

Solved Level 2 challenge Spanish Strip Cipher — Part 1

E42314052

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