| Date | User | Challenge | Score |
| cavazinf | Size and Basis | 15 | |
| martyrant | Hamiltonicity 2 | 175 | |
| martyrant | Hamiltonicity 2 (CryptoHack) | 0 | |
| cavazinf | Vectors | 10 | |
| Hiiamming | Tough decisions (ECSC 2023 (Norway)) | 0 | |
| S0LLLLl | ASCII | 5 | |
| jaskcon | Finding Flags | 2 | |
| cavazinf | WOTS Up 2 | 90 | |
| S0LLLLl | Great Snakes | 3 | |
| tup01ris | Gaussian Reduction | 50 | |
| cavazinf | WOTS Up | 75 | |
| S0LLLLl | Finding Flags | 2 | |
| cavazinf | Merkle Trees | 25 | |
| User0069 | Curveball | 100 | |
| cavazinf | Invariant | 250 | |
| HDRM | ASCII | 5 | |
| vr7xl | Greatest Common Divisor | 15 | |
| gofmank | Bringing It All Together | 50 | |
| HDRM | Great Snakes | 3 | |
| HDRM | Finding Flags | 2 | |
| ragunogh | CERTainly not | 30 | |
| fazslll | Generators of Groups | 20 | |
| PolyFluorine | JWT Sessions | 10 | |
| PolyFluorine | Token Appreciation | 5 | |
| gamebun | Diffusion through Permutation | 30 | |
| ragunogh | Privacy-Enhanced Mail? | 25 | |
| YWzhong | Encoding Challenge | 40 | |
| MasterLJ | Quadratic Residues | 25 | |
| martyrant | Hamiltonicity 1 | 100 | |
| martyrant | Hamiltonicity (CryptoHack) | 0 | |
| ragunogh | Lemur XOR | 40 | |
| phucpk | Cofactor Cofantasy | 150 | |
| brew | Successive Powers | 60 | |
| PolyFluorine | Unencryptable | 125 | |
| YWzhong | Network Attacks | 5 | |
| cavazinf | Mixed Up | 120 | |
| tup01ris | What's a Lattice? | 40 | |
| tup01ris | Size and Basis | 15 | |
| tup01ris | Vectors | 10 | |
| cyk0sure | What's a Lattice? | 40 | |
| martyrant | OR Proof | 75 | |
| martyrant | OR Proof (CryptoHack) | 0 | |
| PolyFluorine | Working with Fields | 10 | |
| psoet | Background Reading | 5 | |
| PolyFluorine | Modulus Inutilis | 50 | |
| PolyFluorine | Salty | 20 | |
| moriMorri | Finding Flags | 2 | |
| wjaaaaaaat | Digestive | 60 | |
| martyrant | Too Honest | 50 | |
| OutOfTheWell | Size and Basis | 15 |
You are now level Current level