| Date | User | Challenge | Score |
| achmakris | Transparency | 50 | |
| mrrobot2627 | Finding Flags | 2 | |
| mavpa | Finding Flags | 2 | |
| Chrysa_Mar | Finding Flags | 2 | |
| alexrg | Jack's Birthday Hash | 20 | |
| teelwood | XOR Starter | 10 | |
| KunumiCiber | Finding Flags | 2 | |
| Kas_d_Attay | Quadratic Residues | 25 | |
| achmakris | SSH Keys | 35 | |
| AedenDj | Great Snakes | 3 | |
| achmakris | CERTainly not | 30 | |
| achmakris | Privacy-Enhanced Mail? | 25 | |
| alexrg | Quadratic Residues | 25 | |
| AedenDj | Finding Flags | 2 | |
| aris_tsal | Export-grade | 100 | |
| yairRubin4 | Encoding Challenge | 40 | |
| aris_tsal | Parameter Injection | 60 | |
| aris_tsal | Deriving Symmetric Keys | 40 | |
| tekina | XOR Properties | 15 | |
| achmakris | Extended GCD | 20 | |
| m0ns7er | Hamiltonicity 1 | 100 | |
| achmakris | Modular Inverting | 25 | |
| Redender64 | Bounded Noise | 50 | |
| achmakris | Modular Arithmetic 2 | 20 | |
| achmakris | Modular Arithmetic 1 | 20 | |
| ntin7ws | Round Keys | 20 | |
| achmakris | Greatest Common Divisor | 15 | |
| aris_tsal | Crossed Wires | 100 | |
| achmakris | Lemur XOR | 40 | |
| JamesOmega36 | Network Attacks | 5 | |
| SteliosSd | Extended GCD | 20 | |
| eoin | Inferius Prime | 30 | |
| zgc856 | Favourite byte | 20 | |
| talayhan | Let's Prove It Again | 175 | |
| paulti | Modes of Operation Starter | 15 | |
| m0ns7er | OR Proof | 75 | |
| x3ric | One Round Crypto (ECSC 2024 (Italy)) | 0 | |
| zgc856 | XOR Properties | 15 | |
| Mateusz_Kowalski | Static Client 2 | 120 | |
| paulti | Bringing It All Together | 50 | |
| talayhan | Noise Cheap | 90 | |
| Mateusz_Kowalski | Script Kiddie | 70 | |
| squ4r00t | Resisting Bruteforce | 10 | |
| ntin7ws | Structure of AES | 15 | |
| squ4r00t | Keyed Permutations | 5 | |
| NearXa | Bean Counter | 60 | |
| NearXa | Symmetry | 50 | |
| vasiliskintis | Passwords as Keys | 50 | |
| NearXa | Triple DES | 60 | |
| Banana_Babanana | Broken RSA | 100 |
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