| Date | User | Challenge | Score |
| guilty | Network Attacks | 5 | |
| Ayaulym240988 | Great Snakes | 3 | |
| HimanshuP6001 | Greatest Common Divisor | 15 | |
| vasilikichar | Resisting Bruteforce | 10 | |
| Ayaulym240988 | Finding Flags | 2 | |
| vasilikichar | Keyed Permutations | 5 | |
| J3sus_Chris | Structure of AES | 15 | |
| AuroNox29 | Network Attacks | 5 | |
| TeoKech | Structure of AES | 15 | |
| Lemon28 | Bringing It All Together | 50 | |
| HimanshuP6001 | You either know, XOR you don't | 30 | |
| xth_student | Keyed Permutations | 5 | |
| kazhymukan | Transparency | 50 | |
| J3sus_Chris | Resisting Bruteforce | 10 | |
| J3sus_Chris | Keyed Permutations | 5 | |
| HipsterMouse | Modular Inverting | 25 | |
| alexandros | Monoprime | 30 | |
| johnguilding | Bytes and Big Integers | 10 | |
| kazhymukan | SSH Keys | 35 | |
| Galois | Introduction to Isogenies | 10 | |
| alexandros | Factoring | 15 | |
| TeoKech | Resisting Bruteforce | 10 | |
| lidor | Diffusion through Permutation | 30 | |
| djs100201 | Modular Binomials | 80 | |
| kazhymukan | CERTainly not | 30 | |
| johnguilding | Base64 | 10 | |
| ChrisDelendas | Salty | 20 | |
| TeoKech | Keyed Permutations | 5 | |
| kazhymukan | Privacy-Enhanced Mail? | 25 | |
| johnguilding | Hex | 5 | |
| Archi_K | Modular Inverting | 25 | |
| HipsterMouse | Modular Arithmetic 2 | 20 | |
| Archi_K | Modular Arithmetic 2 | 20 | |
| saharalarz | Great Snakes | 3 | |
| xth_student | Modular Binomials | 80 | |
| saharalarz | Finding Flags | 2 | |
| Adem0 | RSA Decryption | 20 | |
| Mallhar3923V | Great Snakes | 3 | |
| HipsterMouse | Modular Arithmetic 1 | 20 | |
| Mallhar3923V | Finding Flags | 2 | |
| Adem0 | Private Keys | 20 | |
| Adem0 | Euler's Totient | 20 | |
| Googo | Modulus Inutilis | 50 | |
| HipsterMouse | Extended GCD | 20 | |
| Adem0 | Public Keys | 15 | |
| Adem0 | Modular Exponentiation | 10 | |
| kazhymukan | Modular Inverting | 25 | |
| Archi_K | Modular Arithmetic 1 | 20 | |
| conmeodilac | Modulus Inutilis | 50 | |
| ad12121212 | Transparency | 50 |
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