| Date | User | Challenge | Score |
| gcespedes | SSH Keys | 35 | |
| malak_maythim | Base64 | 10 | |
| gcespedes | CERTainly not | 30 | |
| gcespedes | Privacy-Enhanced Mail? | 25 | |
| alifgfr | XOR Starter | 10 | |
| svenny | Public Keys | 15 | |
| rambousek | Hex | 5 | |
| Abdallah_Cyber7 | Bytes and Big Integers | 10 | |
| svenny | Modular Exponentiation | 10 | |
| malak_maythim | Hex | 5 | |
| lingling | Triple DES | 60 | |
| gcespedes | Encoding Challenge | 40 | |
| yousef_m7 | Resisting Bruteforce | 10 | |
| nighty_night | Modular Inverting | 25 | |
| test1337 | ECB Oracle | 60 | |
| alifgfr | Bytes and Big Integers | 10 | |
| lucy54 | Elliptic Nodes | 150 | |
| malak_maythim | ASCII | 5 | |
| Blerimi | Great Snakes | 3 | |
| gcespedes | Modular Inverting | 25 | |
| gcespedes | Modular Arithmetic 2 | 20 | |
| Abdallah_Cyber7 | Base64 | 10 | |
| alifgfr | Base64 | 10 | |
| Blerimi | Finding Flags | 2 | |
| malak_maythim | Great Snakes | 3 | |
| NioZow | Where's the Supersingular Curve | 25 | |
| TATOSTADO | Base64 | 10 | |
| alifgfr | Hex | 5 | |
| rana9010 | XOR Starter | 10 | |
| gcespedes | Modular Arithmetic 1 | 20 | |
| nighty_night | Modular Arithmetic 2 | 20 | |
| gcespedes | Extended GCD | 20 | |
| alifgfr | Great Snakes | 3 | |
| TATOSTADO | Hex | 5 | |
| gcespedes | Greatest Common Divisor | 15 | |
| gcespedes | Lemur XOR | 40 | |
| Bren | You either know, XOR you don't | 30 | |
| alifgfr | Finding Flags | 2 | |
| Bren | Favourite byte | 20 | |
| Bren | XOR Properties | 15 | |
| Bren | XOR Starter | 10 | |
| Bren | Bytes and Big Integers | 10 | |
| Bren | Base64 | 10 | |
| Bren | Hex | 5 | |
| Bren | ASCII | 5 | |
| Bren | Great Snakes | 3 | |
| Bren | Finding Flags | 2 | |
| TATOSTADO | ASCII | 5 | |
| rana9010 | Bytes and Big Integers | 10 | |
| gcespedes | You either know, XOR you don't | 30 |
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