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The Crypto Challenge Contest

371
Challenges
13,345
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 immortalized in the Hall of Fame.
Challenges in four levels

Four degrees of difficulty, from pen & paper to complex mathematical problems

Recent solves
Micah Anderson
Micah Anderson

Solved Level 1 challenge Number Sequence — Part 2

Micah Anderson
Micah Anderson

Solved Level 1 challenge Number Sequence

george_k
george_k

Solved Level 1 challenge Beaver Code

george_k
george_k

Solved Level 1 challenge Number Sequence

itssosh
itssosh

Solved Level 2 challenge Letter to the Templars — Part 3

itssosh
itssosh

Solved Level 1 challenge Letter to the Templars — Part 2

itssosh
itssosh

Solved Level 1 challenge Number Sequence — Part 4

itssosh
itssosh

Solved Level 1 challenge Letter to the Templars — Part 1

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:
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