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5 kyu
Break the Caesar!
726kingcobra
Completed Languages:
5 kyu
Caesar Cipher Helper
4,915eugene-bulkin
Completed Languages:
4 kyu
Hide a message in a deck of playing cards
253Zwyx
Completed Languages:
5 kyu
First Variation on Caesar Cipher
4,845g964
Completed Languages:
4 kyu
Most frequently used words in a text
27,949markprzepiora
Completed Languages:
6 kyu
Split Strings
156,739jhoffner
Completed Languages:
6 kyu
Decode the Morse code
116,243jolaf
Completed Languages:
5 kyu
Merged String Checker
9,205Abbe
Completed Languages:
7 kyu
Simple Physics Problem
441dnafication
Completed Languages:
7 kyu
254 shades of grey
4,296jekt
Completed Languages:
4 kyu
Cracking the Vigenère cipher, step 1: determining key length
139NaMe613
Completed Languages:
4 kyu
Vigenère Cipher Helper
8,276jacobb
Completed Languages:
6 kyu
Decipher this!
9,333yvonne-liu
Completed Languages:
6 kyu
Simple Substitution Cipher Helper
3,619jacobb
Completed Languages:
3 kyu
Rail Fence Cipher: Encoding and Decoding
8,586darrentburgess
Completed Languages:
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