| Date | User | Challenge | Score |
| Spire | CTRIME | 70 | |
| crassarrow | ProSign 3 | 100 | |
| Kiwi64bit | Modular Arithmetic 1 | 20 | |
| Toadytop | Saying Hello | 20 | |
| solomondel | Finding Flags | 2 | |
| Kiwi64bit | Extended GCD | 20 | |
| Spire | Oh SNAP | 120 | |
| Toadytop | TLS Handshake | 15 | |
| FelixFu | Modular Inverting | 25 | |
| Spire | Mixed Up | 120 | |
| Toadytop | Sharks on the Wire | 10 | |
| Spire | Stream of Consciousness | 80 | |
| Sharan07 | Monoprime | 30 | |
| Spire | PriMeD5 | 100 | |
| Toadytop | Secure Protocols | 5 | |
| FelixFu | Modular Arithmetic 2 | 20 | |
| FelixFu | Modular Arithmetic 1 | 20 | |
| sefimiu | Generators of Groups | 20 | |
| MrPuPa | Base64 | 10 | |
| twistedwheel | Adrien's Signs | 80 | |
| WhizZ | Finding Flags | 2 | |
| Spire | Logon Zero | 80 | |
| Spire | Static Client 2 | 120 | |
| Spire | Dancing Queen | 120 | |
| Kiwi64bit | Greatest Common Divisor | 15 | |
| fairy | Modular Arithmetic 1 | 20 | |
| loki95 | ASCII | 5 | |
| FelixFu | Extended GCD | 20 | |
| BoonieX | Modular Inverting | 25 | |
| loki95 | Great Snakes | 3 | |
| FelixFu | Greatest Common Divisor | 15 | |
| HarshVardhan | Network Attacks | 5 | |
| loki95 | Finding Flags | 2 | |
| t4l | Proofs of Knowledge | 20 | |
| thet | RSA Signatures | 25 | |
| Hyper1 | Favourite byte | 20 | |
| Agnumen | Adrien's Signs | 80 | |
| Dan007 | Greatest Common Divisor | 15 | |
| quangntenemy | Fischlin Transform | 180 | |
| quangntenemy | Fischlin's Transformation (CryptoHack) | 0 | |
| Samyakcoder12 | Base64 | 10 | |
| reny | The Matrix | 75 | |
| chinmoy_paul | ProSign 3 | 100 | |
| Hyper1 | XOR Properties | 15 | |
| Sharan07 | Factoring | 15 | |
| cattablock | Adrien's Signs | 80 | |
| davide_rebuffo | MD0 | 80 | |
| bro31813 | Bringing It All Together | 50 | |
| davide_rebuffo | No Difference | 175 | |
| thet | Base64 | 10 |
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