| Date | User | Challenge | Score |
| Force_er | Great Snakes | 3 | |
| Davis | Favourite byte | 20 | |
| Milamber | Greatest Common Divisor | 15 | |
| Milamber | You either know, XOR you don't | 30 | |
| Milamber | Favourite byte | 20 | |
| Milamber | XOR Properties | 15 | |
| Milamber | XOR Starter | 10 | |
| Milamber | Encoding Challenge | 40 | |
| Force_er | Finding Flags | 2 | |
| Milamber | Bytes and Big Integers | 10 | |
| Milamber | Base64 | 10 | |
| Milamber | Hex | 5 | |
| Milamber | ASCII | 5 | |
| TyLion | Bytes and Big Integers | 10 | |
| TyLion | Base64 | 10 | |
| AmandaKoki | Modular Binomials | 80 | |
| Frederik353 | Flipping Cookie | 60 | |
| TyLion | Hex | 5 | |
| TyLion | ASCII | 5 | |
| vanMjnh | WOTS Up 2 | 90 | |
| TyLion | Great Snakes | 3 | |
| TyLion | Finding Flags | 2 | |
| AdorableSkeleton | The j-invariant | 20 | |
| Frederik353 | ECB CBC WTF | 55 | |
| khyrr | Factoring | 15 | |
| schoin | Passwords as Keys | 50 | |
| whoiswhois | No Difference | 175 | |
| Davis | XOR Properties | 15 | |
| idaaluso | Modular Arithmetic 1 | 20 | |
| Pippo123456 | You either know, XOR you don't | 30 | |
| HoriaF | Modular Square Root | 35 | |
| Davis | XOR Starter | 10 | |
| Pippo123456 | Favourite byte | 20 | |
| Pippo123456 | XOR Properties | 15 | |
| khyrr | RSA Signatures | 25 | |
| pazuzu | Quadratic Residues | 25 | |
| HoriaF | Legendre Symbol | 35 | |
| Pippo123456 | XOR Starter | 10 | |
| Sh4d0w_hunt3r | Lemur XOR | 40 | |
| Pippo123456 | Bytes and Big Integers | 10 | |
| HVOC | Adrien's Signs | 80 | |
| khyrr | Public Keys | 15 | |
| Pippo123456 | Base64 | 10 | |
| HVOC | Modular Binomials | 80 | |
| Pippo123456 | Hex | 5 | |
| HoriaF | Quadratic Residues | 25 | |
| Pippo123456 | ASCII | 5 | |
| khyrr | Euler's Totient | 20 | |
| Pippo123456 | Great Snakes | 3 | |
| Pippo123456 | Finding Flags | 2 |
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