| Date | User | Challenge | Score |
| Skypace | Finding Flags | 2 | |
| LostExcalibur | Diffusion through Permutation | 30 | |
| yuzuki77i | XOR Starter | 10 | |
| iljas | Favourite byte | 20 | |
| Mirvitik | Base64 | 10 | |
| nadirazizah | You either know, XOR you don't | 30 | |
| LostExcalibur | Confusion through Substitution | 25 | |
| noakiki | ASCII | 5 | |
| Mirvitik | Hex | 5 | |
| tomaspetras | Token Appreciation | 5 | |
| rito_sand | Modular Inverting | 25 | |
| nadirazizah | Favourite byte | 20 | |
| Mirvitik | ASCII | 5 | |
| LostExcalibur | Round Keys | 20 | |
| iljas | XOR Properties | 15 | |
| 1111111qaq | Hex | 5 | |
| edisonsoo1263 | Bytes and Big Integers | 10 | |
| abhabh | Structure of AES | 15 | |
| tomaspetras | Moving Problems | 150 | |
| LostExcalibur | Structure of AES | 15 | |
| rito_sand | Modular Arithmetic 2 | 20 | |
| nadirazizah | XOR Properties | 15 | |
| rayddd | XOR Starter | 10 | |
| adelali | WOTS Up 2 | 90 | |
| adelali | WOTS Up | 75 | |
| LostExcalibur | Resisting Bruteforce | 10 | |
| LostExcalibur | Keyed Permutations | 5 | |
| r0hit | Paper Plane | 120 | |
| rragewrath1 | Factoring | 15 | |
| 1111111qaq | ASCII | 5 | |
| Mirvitik | Great Snakes | 3 | |
| Dend1 | Great Snakes | 3 | |
| nadirazizah | XOR Starter | 10 | |
| rito_sand | Modular Arithmetic 1 | 20 | |
| 1111111qaq | Great Snakes | 3 | |
| Mirvitik | Finding Flags | 2 | |
| hellooooowww | Transparency | 50 | |
| 1111111qaq | Finding Flags | 2 | |
| nadirazizah | Bytes and Big Integers | 10 | |
| rito_sand | Extended GCD | 20 | |
| LostExcalibur | Modular Binomials | 80 | |
| mboh2 | Manyprime | 40 | |
| nadirazizah | Base64 | 10 | |
| nadirazizah | Hex | 5 | |
| mahi_m_103 | You either know, XOR you don't | 30 | |
| MrLi313 | You either know, XOR you don't | 30 | |
| LostExcalibur | Adrien's Signs | 80 | |
| Erch | Modular Arithmetic 1 | 20 | |
| kTagio | ASCII | 5 | |
| Dend1 | Finding Flags | 2 |
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