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The Crypto Challenge Contest

368
Challenges
13,056
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
Klaus
Klaus

Today at 04:27 PM

Klaus
Klaus

Today at 12:00 PM

sigma
sigma

Yesterday at 12:43 PM

Solved Level 1 challenge The Syllabary Cipher – Part 1

Robert
Robert

Earlier

Solved Level 2 challenge The Josse Challenge – Part 2

Klaus
Klaus

Earlier

Robert
Robert

Earlier

Solved Level 2 challenge The Josse Challenge – Part 1

ketchak
ketchak

Earlier

Solved Level 1 challenge Number Sequence

Arno
Arno

Earlier

Solved Level 1 challenge Advent-Challenge — 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

OUR 7 MOST SOLVED CHALLENGES:
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