| Date | User | Challenge | Score |
| Machariapaul | Confusion through Substitution | 25 | |
| EinsteinOgamba | Modes of Operation Starter | 15 | |
| NetKingJ | Lack of Entropy (Firebird Internal CTF) | 0 | |
| iamshazzyy | Great Snakes | 3 | |
| Musau | Passwords as Keys | 50 | |
| isabellan_M | ASCII | 5 | |
| Gitabi | Base64 | 10 | |
| HKwesha | ASCII | 5 | |
| Gitabi | Hex | 5 | |
| iamshazzyy | Finding Flags | 2 | |
| luiz4u2 | Modes of Operation Starter | 15 | |
| Gitabi | ASCII | 5 | |
| luiz4u2 | Bringing It All Together | 50 | |
| iankip | Diffusion through Permutation | 30 | |
| luiz4u2 | Diffusion through Permutation | 30 | |
| SeanMuthomi | Bringing It All Together | 50 | |
| iamj0k3r | Favourite byte | 20 | |
| iankip | Confusion through Substitution | 25 | |
| KariukiAnthony | You either know, XOR you don't | 30 | |
| Gitabi | Great Snakes | 3 | |
| ChristabelAfandi | Legendre Symbol | 35 | |
| HKwesha | Great Snakes | 3 | |
| KariukiAnthony | Favourite byte | 20 | |
| EinsteinOgamba | Bringing It All Together | 50 | |
| luiz4u2 | Confusion through Substitution | 25 | |
| iankip | Round Keys | 20 | |
| SeanMuthomi | Diffusion through Permutation | 30 | |
| Machariapaul | Round Keys | 20 | |
| Musau | Modes of Operation Starter | 15 | |
| ChristabelAfandi | Quadratic Residues | 25 | |
| KariukiAnthony | XOR Properties | 15 | |
| tasha_K | You either know, XOR you don't | 30 | |
| p_mbithe | Great Snakes | 3 | |
| iankip | Structure of AES | 15 | |
| EinsteinOgamba | Diffusion through Permutation | 30 | |
| ChristabelAfandi | Modular Inverting | 25 | |
| JeffersonMK | You either know, XOR you don't | 30 | |
| Machariapaul | Structure of AES | 15 | |
| Gitabi | Finding Flags | 2 | |
| wh77 | Passwords as Keys | 50 | |
| Michael_Mutuma | Symmetry | 50 | |
| JeffersonMK | Favourite byte | 20 | |
| luiz4u2 | Round Keys | 20 | |
| p_mbithe | Finding Flags | 2 | |
| KariukiAnthony | XOR Starter | 10 | |
| SeanMuthomi | Confusion through Substitution | 25 | |
| ChristabelAfandi | Modular Arithmetic 2 | 20 | |
| ChristabelAfandi | Modular Arithmetic 1 | 20 | |
| JeffersonMK | XOR Properties | 15 | |
| ChristabelAfandi | Extended GCD | 20 |
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