| Date | User | Challenge | Score |
| cafecafe | Hex | 5 | |
| aboj0 | Extended GCD | 20 | |
| cafecafe | ASCII | 5 | |
| agentjlrmt | No Random, No Bias | 120 | |
| cafecafe | Network Attacks | 5 | |
| gigisoave | Modular Binomials | 80 | |
| Loivan | Parameter Injection | 60 | |
| junkfile | Finding Flags | 2 | |
| agentjlrmt | Double and Broken | 50 | |
| telepuzik | Network Attacks | 5 | |
| aboj0 | Greatest Common Divisor | 15 | |
| Bhattay2001 | Finding Flags | 2 | |
| Tomman55 | ASCII | 5 | |
| qwe12344 | Bytes and Big Integers | 10 | |
| cafecafe | Great Snakes | 3 | |
| Tomman55 | Great Snakes | 3 | |
| Nasimi | Resisting Bruteforce | 10 | |
| Zira | ECB Oracle | 60 | |
| cafecafe | Finding Flags | 2 | |
| Nasimi | Transparency | 50 | |
| tanis3050 | Adrien's Signs | 80 | |
| Nasimi | Keyed Permutations | 5 | |
| agentjlrmt | ProSign 3 | 100 | |
| agentjlrmt | Curveball | 100 | |
| Loivan | Deriving Symmetric Keys | 40 | |
| 4rul23 | Extended GCD | 20 | |
| qwe12344 | Base64 | 10 | |
| agentjlrmt | Montgomery's Ladder | 40 | |
| rykazari | Modular Square Root | 35 | |
| agentjlrmt | Edwards Goes Degenerate | 100 | |
| Nasimi | SSH Keys | 35 | |
| qwe12344 | Hex | 5 | |
| agentjlrmt | Moving Problems | 150 | |
| snurf | Bytes and Big Integers | 10 | |
| Kanad3 | What's a Lattice? | 40 | |
| n30nx | Bruce Schneier's Password | 100 | |
| n30nx | Bruce Schneier's Password: Part 2 | 250 | |
| Nasimi | CERTainly not | 30 | |
| 4rul23 | Greatest Common Divisor | 15 | |
| Nasimi | Privacy-Enhanced Mail? | 25 | |
| idan4ii | Great Snakes | 3 | |
| idan4ii | Finding Flags | 2 | |
| zxo | Base64 | 10 | |
| specialOps | CTRIME | 70 | |
| zxo | Hex | 5 | |
| snurf | Base64 | 10 | |
| snurf | Hex | 5 | |
| zxo | ASCII | 5 | |
| Technoblade | Favourite byte | 20 | |
| snurf | ASCII | 5 |
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