| Date | User | Challenge | Score |
| pbidle | Everything is Big | 70 | |
| kanethang | Finding Flags | 2 | |
| Uyanclo | XOR Starter | 10 | |
| louis0827 | Hex | 5 | |
| Acyani | Favourite byte | 20 | |
| louis0827 | ASCII | 5 | |
| defa | Favourite byte | 20 | |
| louis0827 | Great Snakes | 3 | |
| BramBode | Hex | 5 | |
| louis0827 | Finding Flags | 2 | |
| D4em0n | Adrien's Signs | 80 | |
| defa | XOR Properties | 15 | |
| BramBode | ASCII | 5 | |
| bro31813 | SSH Keys | 35 | |
| BramBode | Great Snakes | 3 | |
| bro31813 | CERTainly not | 30 | |
| hynxio | Modular Arithmetic 1 | 20 | |
| Uyanclo | Bytes and Big Integers | 10 | |
| defa | XOR Starter | 10 | |
| bro31813 | Privacy-Enhanced Mail? | 25 | |
| Havie | Finding Flags | 2 | |
| rushnanreaz | Finding Flags | 2 | |
| BramBode | Finding Flags | 2 | |
| hobione | Quadratic Residues | 25 | |
| D1533 | Checkpoint | 150 | |
| bro31813 | Modular Inverting | 25 | |
| sdigs | Everything is Big | 70 | |
| bro31813 | Modular Arithmetic 2 | 20 | |
| rubber_duck | Structure of AES | 15 | |
| Galler | Quadratic Residues | 25 | |
| bro31813 | Modular Arithmetic 1 | 20 | |
| bro31813 | Extended GCD | 20 | |
| TheRalinguant | XOR Properties | 15 | |
| axolotl11 | Curves and Logs | 40 | |
| lyneve | XOR Starter | 10 | |
| Acyani | XOR Properties | 15 | |
| lyneve | Bytes and Big Integers | 10 | |
| axolotl11 | Scalar Multiplication | 35 | |
| lyneve | Base64 | 10 | |
| bro31813 | Greatest Common Divisor | 15 | |
| lyneve | Hex | 5 | |
| lyneve | ASCII | 5 | |
| bro31813 | Lemur XOR | 40 | |
| alykacitra | Flipping Cookie | 60 | |
| alykacitra | ECB CBC WTF | 55 | |
| alykacitra | ECB Oracle | 60 | |
| lyneve | Great Snakes | 3 | |
| axolotl11 | Point Addition | 30 | |
| bro31813 | You either know, XOR you don't | 30 | |
| lyneve | Finding Flags | 2 |
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