| Date | User | Challenge | Score |
| ShahdElrawy | Modular Inverting | 25 | |
| denarzai | Extended GCD | 20 | |
| konmr | Legendre Symbol | 35 | |
| Kubistmi | XOR Starter | 10 | |
| Moze | Bytes and Big Integers | 10 | |
| konmr | Quadratic Residues | 25 | |
| ox1bx | Fischlin's Transformation (CryptoHack) | 0 | |
| konmr | Modular Inverting | 25 | |
| konmr | Modular Arithmetic 2 | 20 | |
| Fatiimaaa | Modular Arithmetic 1 | 20 | |
| konmr | Modular Arithmetic 1 | 20 | |
| konmr | Extended GCD | 20 | |
| konmr | Greatest Common Divisor | 15 | |
| Hamoud | Greatest Common Divisor | 15 | |
| ShahdElrawy | Modular Arithmetic 2 | 20 | |
| PSilva | XOR Starter | 10 | |
| Fatiimaaa | Extended GCD | 20 | |
| Mohammedamin | Network Attacks | 5 | |
| konmr | You either know, XOR you don't | 30 | |
| konmr | Favourite byte | 20 | |
| mauwyh | Base64 | 10 | |
| PSilva | Bytes and Big Integers | 10 | |
| konmr | XOR Properties | 15 | |
| Graymatter925 | Bytes and Big Integers | 10 | |
| Hamoud | You either know, XOR you don't | 30 | |
| konmr | XOR Starter | 10 | |
| Graymatter925 | Base64 | 10 | |
| Graymatter925 | Hex | 5 | |
| Hamoud | Favourite byte | 20 | |
| konmr | Bytes and Big Integers | 10 | |
| konmr | Base64 | 10 | |
| konmr | Hex | 5 | |
| denarzai | Greatest Common Divisor | 15 | |
| Hamoud | XOR Properties | 15 | |
| mauwyh | Hex | 5 | |
| Graymatter925 | ASCII | 5 | |
| Kubistmi | Bytes and Big Integers | 10 | |
| Kubistmi | Base64 | 10 | |
| Kubistmi | Hex | 5 | |
| konmr | ASCII | 5 | |
| Kubistmi | ASCII | 5 | |
| abdelhak | The j-invariant | 20 | |
| Kubistmi | Great Snakes | 3 | |
| konmr | Great Snakes | 3 | |
| goosebud21 | Modes of Operation Starter | 15 | |
| Hamoud | XOR Starter | 10 | |
| mauwyh | ASCII | 5 | |
| konmr | Finding Flags | 2 | |
| XelenaG | ASCII | 5 | |
| PSilva | Base64 | 10 |
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