| Date | User | Challenge | Score |
| spholo | Structure of AES | 15 | |
| silder | XOR Properties | 15 | |
| ExOdoo | ASCII | 5 | |
| mariem750 | Hex | 5 | |
| Matikjd | Greatest Common Divisor | 15 | |
| Denis_Roc | Bringing It All Together | 50 | |
| Ojun | Efficient Exchange | 50 | |
| ExOdoo | Great Snakes | 3 | |
| VsivaR | Finding Flags | 2 | |
| mariem750 | ASCII | 5 | |
| AESpider | Megalomaniac 3 | 120 | |
| ExOdoo | Finding Flags | 2 | |
| longcxALT | Adrien's Signs | 80 | |
| LTaki | Privacy-Enhanced Mail? | 25 | |
| max10afternoon | Diffusion through Permutation | 30 | |
| spholo | Resisting Bruteforce | 10 | |
| mariem750 | Great Snakes | 3 | |
| spholo | Keyed Permutations | 5 | |
| Bonolori404 | Successive Powers | 60 | |
| mariem750 | Finding Flags | 2 | |
| demr | Stream of Consciousness | 80 | |
| max10afternoon | Confusion through Substitution | 25 | |
| tode | XOR Starter | 10 | |
| vladzodchey | You either know, XOR you don't | 30 | |
| Ojun | Curves and Logs | 40 | |
| max10afternoon | Round Keys | 20 | |
| Bonolori404 | Modular Binomials | 80 | |
| trcmaster | Keyed Permutations | 5 | |
| max10afternoon | Structure of AES | 15 | |
| Akpa2306 | Finding Flags | 2 | |
| LTaki | Modular Inverting | 25 | |
| max10afternoon | Resisting Bruteforce | 10 | |
| max10afternoon | Keyed Permutations | 5 | |
| LTaki | Modular Arithmetic 2 | 20 | |
| tode | Bytes and Big Integers | 10 | |
| ScorpioFR | Greatest Common Divisor | 15 | |
| LTaki | Modular Arithmetic 1 | 20 | |
| trcmaster | Modular Binomials | 80 | |
| aresinheaven | A True Genus | 175 | |
| aresinheaven | Meet me in the Claw | 120 | |
| aresinheaven | Dual Masters | 90 | |
| aresinheaven | Abelian SIDH | 90 | |
| aresinheaven | Better than Linear | 85 | |
| tode | Base64 | 10 | |
| aresinheaven | André Encoding | 80 | |
| aresinheaven | What's My Kernel | 70 | |
| aresinheaven | CSIDH Key Exchange | 90 | |
| tode | Hex | 5 | |
| tode | ASCII | 5 | |
| tode | Great Snakes | 3 |
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