| Date | User | Challenge | Score |
| Velisar | Legendre Symbol | 35 | |
| apm4n | Greatest Common Divisor | 15 | |
| RechnerMai | Hex | 5 | |
| RechnerMai | ASCII | 5 | |
| apm4n | Lemur XOR | 40 | |
| steveyxz | Greatest Common Divisor | 15 | |
| LABORATOR | Modular Inverting | 25 | |
| Auspiow | Modular Arithmetic 2 | 20 | |
| jackoha | Paper Plane | 120 | |
| RechnerMai | Great Snakes | 3 | |
| testingworldfull | Modular Inverting | 25 | |
| alzzz | Inferius Prime | 30 | |
| RechnerMai | Finding Flags | 2 | |
| testingworldfull | Modular Arithmetic 2 | 20 | |
| LABORATOR | Modular Arithmetic 2 | 20 | |
| aaanomy | The Good, The Pad, The Ugly | 100 | |
| waeng | Base64 | 10 | |
| steveyxz | You either know, XOR you don't | 30 | |
| testingworldfull | Modular Arithmetic 1 | 20 | |
| guyanyong | Lazy CBC | 60 | |
| Auspiow | Modular Arithmetic 1 | 20 | |
| waeng | Hex | 5 | |
| steveyxz | Favourite byte | 20 | |
| waeng | ASCII | 5 | |
| Auspiow | Extended GCD | 20 | |
| mhphamvu | ASCII | 5 | |
| waeng | Great Snakes | 3 | |
| waeng | Finding Flags | 2 | |
| AkaiKitsune_2107 | Modular Binomials | 80 | |
| steveyxz | XOR Properties | 15 | |
| testingworldfull | Extended GCD | 20 | |
| Pichmeow | Modular Inverting | 25 | |
| LABORATOR | Modular Arithmetic 1 | 20 | |
| steveyxz | XOR Starter | 10 | |
| user467985982 | Parameter Injection | 60 | |
| steveyxz | Bytes and Big Integers | 10 | |
| reaverdm | Great Snakes | 3 | |
| LABORATOR | Extended GCD | 20 | |
| LABORATOR | Greatest Common Divisor | 15 | |
| tackmin1204 | CERTainly not | 30 | |
| testingworldfull | Greatest Common Divisor | 15 | |
| steveyxz | Base64 | 10 | |
| Auspiow | Greatest Common Divisor | 15 | |
| steveyxz | Hex | 5 | |
| pcspcs | Fast Primes | 75 | |
| user467985982 | Deriving Symmetric Keys | 40 | |
| steveyxz | ASCII | 5 | |
| steveyxz | Great Snakes | 3 | |
| steveyxz | Finding Flags | 2 | |
| user467985982 | Computing Shared Secrets | 30 |
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