| Date | User | Challenge | Score |
| lchomin | Export-grade | 100 | |
| Kran | Oracular Spectacular | 150 | |
| giorgia_quant | ASCII | 5 | |
| enigma140 | Flipping Cookie | 60 | |
| cedric013 | Jeff's LFSR | 150 | |
| enigma140 | ECB Oracle | 60 | |
| Aggriz | XOR Starter | 10 | |
| cedric013 | import numpy as MT (Zh3r0 CTF V2) | 0 | |
| cedric013 | Nothing Up My Sleeve | 150 | |
| Bronaghh | Finding Flags | 2 | |
| cedric013 | Lo-Hi Card Game | 120 | |
| giorgia_quant | Great Snakes | 3 | |
| giorgia_quant | Finding Flags | 2 | |
| neur0mancer | Great Snakes | 3 | |
| neur0mancer | Finding Flags | 2 | |
| gmenichetti | JWT Secrets | 25 | |
| Chip | Confusion through Substitution | 25 | |
| gmenichetti | RSA or HMAC? | 35 | |
| Chip | Round Keys | 20 | |
| VeeSea | XOR Starter | 10 | |
| cedric013 | L-Win | 120 | |
| cedric013 | Bit by Bit | 100 | |
| Chip | Structure of AES | 15 | |
| cedric013 | Bruce Schneier's Password | 100 | |
| Chip | Resisting Bruteforce | 10 | |
| Chip | Keyed Permutations | 5 | |
| int80 | Hash Stuffing | 50 | |
| cedric013 | Toshi's Treasure | 150 | |
| rania_1412_1412 | Hex | 5 | |
| quietsparrows | Finding Flags | 2 | |
| Frederik353 | Oh SNAP | 120 | |
| rania_1412_1412 | ASCII | 5 | |
| NoBirdWasHam | Hamiltonicity (CryptoHack) | 0 | |
| m4ng | You either know, XOR you don't | 30 | |
| cedric013 | Armory | 100 | |
| rania_1412_1412 | Great Snakes | 3 | |
| cedric013 | No Leaks | 100 | |
| rania_1412_1412 | Finding Flags | 2 | |
| mathical0732 | L-Win | 120 | |
| cedric013 | Gotta Go Fast | 40 | |
| aaroceterexx | Bean Counter | 60 | |
| aaroceterexx | Symmetry | 50 | |
| aaroceterexx | Flipping Cookie | 60 | |
| aaroceterexx | ECB CBC WTF | 55 | |
| lukisko | Hash Stuffing | 50 | |
| aaroceterexx | ECB Oracle | 60 | |
| m4ng | Favourite byte | 20 | |
| aaroceterexx | Passwords as Keys | 50 | |
| jcd | Signing Server | 60 | |
| hautot211 | Endless Emails | 150 |
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