| Date | User | Challenge | Score |
| LambdaTiger | Hex | 5 | |
| Marlboro | Favourite byte | 20 | |
| LvKNnT | The Good, The Pad, The Ugly | 100 | |
| x86 | Gaussian Reduction | 50 | |
| Marlboro | XOR Properties | 15 | |
| LambdaTiger | ASCII | 5 | |
| LambdaTiger | Great Snakes | 3 | |
| LambdaTiger | Finding Flags | 2 | |
| Dr1o02 | Broken RSA | 100 | |
| FotisL | Confusion through Substitution | 25 | |
| satvika | Hex | 5 | |
| Gl1tch2026 | ASCII | 5 | |
| satvika | ASCII | 5 | |
| sujin | Bruce Schneier's Password: Part 2 | 250 | |
| Gl1tch2026 | Finding Flags | 2 | |
| satvika | Network Attacks | 5 | |
| SteliosSd | Bringing It All Together | 50 | |
| FotisL | Round Keys | 20 | |
| satvika | Great Snakes | 3 | |
| satvika | Finding Flags | 2 | |
| drgnslyr69 | Favourite byte | 20 | |
| SteliosSd | Diffusion through Permutation | 30 | |
| SteliosSd | Confusion through Substitution | 25 | |
| SteliosSd | Round Keys | 20 | |
| drgnslyr69 | XOR Properties | 15 | |
| amitbashan | Marin's Secrets | 50 | |
| nizarr | Confusion through Substitution | 25 | |
| talayhan | Megalomaniac 3 | 120 | |
| obada_2010 | Modular Inverting | 25 | |
| semisweetdude | Favourite byte | 20 | |
| amitbashan | Infinite Descent | 50 | |
| semisweetdude | XOR Properties | 15 | |
| amitbashan | Modulus Inutilis | 50 | |
| asulo97 | Base64 | 10 | |
| sweatyrocket | Real Mersenne (Zh3r0 CTF V2) | 0 | |
| drgnslyr69 | XOR Starter | 10 | |
| SteliosSd | Structure of AES | 15 | |
| semisweetdude | XOR Starter | 10 | |
| nizarr | Round Keys | 20 | |
| AristotelisAnt | RSA or HMAC? Part 2 | 100 | |
| drgnslyr69 | Bytes and Big Integers | 10 | |
| ThanosZara | Lemur XOR | 40 | |
| vsetti | Bespoke Padding | 100 | |
| amitbashan | Salty | 20 | |
| semisweetdude | Bytes and Big Integers | 10 | |
| Tmtonic | Finding Flags | 2 | |
| nzrlabs | CTRIME | 70 | |
| amitbashan | Manyprime | 40 | |
| nzrlabs | Bean Counter | 60 | |
| AndrewSuricato | Legendre Symbol | 35 |
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