4 Cryptography Challenges completed by crtor4
# Challenge Name Points Time
4 Dmitri's Substitution Cipher 100 2020-09-15 02:18:39
23 Concentric Circle Cipher 200 2018-08-17 06:02:49
8 Prime Factor Hangman 50 2015-04-03 02:20:13
56 Felicia's Scrabble Hash 150 2015-04-03 01:28:33


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