| Date | User | Challenge | Score |
| Castarosa | XOR Starter | 10 | |
| Castarosa | Bytes and Big Integers | 10 | |
| agrocos | Round Keys | 20 | |
| Castarosa | Base64 | 10 | |
| burmaLEI | Bytes and Big Integers | 10 | |
| Castarosa | Hex | 5 | |
| Castarosa | ASCII | 5 | |
| Castarosa | Great Snakes | 3 | |
| Castarosa | Finding Flags | 2 | |
| Skarn | Micro Transmissions | 120 | |
| Dandani3awtani | Modular Arithmetic 1 | 20 | |
| piscozaurus | Bytes and Big Integers | 10 | |
| Dandani3awtani | Extended GCD | 20 | |
| nonamemike | Base64 | 10 | |
| rnar300 | Extended GCD | 20 | |
| kingananas20 | Favourite byte | 20 | |
| rnar300 | Greatest Common Divisor | 15 | |
| kingananas20 | XOR Properties | 15 | |
| GiuseppeA | XOR Properties | 15 | |
| rnar300 | You either know, XOR you don't | 30 | |
| Amirhkz631 | Legendre Symbol | 35 | |
| megacyphercrypto | Finding Flags | 2 | |
| stylianos | XOR Starter | 10 | |
| liisiry | Bytes and Big Integers | 10 | |
| 0xabouzied | Base64 | 10 | |
| nonamemike | Hex | 5 | |
| kingananas20 | XOR Starter | 10 | |
| nonamemike | ASCII | 5 | |
| liisiry | Base64 | 10 | |
| kingananas20 | Bytes and Big Integers | 10 | |
| piscozaurus | Base64 | 10 | |
| nonamemike | Great Snakes | 3 | |
| stylianos | Bytes and Big Integers | 10 | |
| 0xK1ller | Great Snakes | 3 | |
| 0xK1ller | Finding Flags | 2 | |
| liisiry | Hex | 5 | |
| agrocos | Structure of AES | 15 | |
| abrarman | RSA Signatures | 25 | |
| nonamemike | Finding Flags | 2 | |
| piscozaurus | Hex | 5 | |
| Amirhkz631 | Quadratic Residues | 25 | |
| stylianos | Base64 | 10 | |
| burmaLEI | Base64 | 10 | |
| kingananas20 | Base64 | 10 | |
| Muzan | Great Snakes | 3 | |
| kingananas20 | Hex | 5 | |
| slycro | RSA vs RNG | 150 | |
| kingananas20 | ASCII | 5 | |
| agrocos | Resisting Bruteforce | 10 | |
| piscozaurus | ASCII | 5 |
You are now level Current level