| Date | User | Challenge | Score |
| lubbarbarek | XOR Properties | 15 | |
| memao | Finding Flags | 2 | |
| yuliyost | Modular Exponentiation | 10 | |
| Be_Ria1 | Size and Basis | 15 | |
| Agonionce | Modular Inverting | 25 | |
| Be_Ria1 | Vectors | 10 | |
| Hack0 | Greatest Common Divisor | 15 | |
| Bachatero | RSA Decryption | 20 | |
| Bachatero | Private Keys | 20 | |
| ShedoZmb | Lemur XOR | 40 | |
| ch_sanan | Modular Inverting | 25 | |
| LALA______2026 | Quadratic Residues | 25 | |
| Bachatero | Euler's Totient | 20 | |
| ShedoZmb | Encoding Challenge | 40 | |
| frontier | ASCII | 5 | |
| RG001 | Keyed Permutations | 5 | |
| oongyi | Base64 | 10 | |
| RG001 | Resisting Bruteforce | 10 | |
| Nuddl_Suppe | Base64 | 10 | |
| tanacrypt | ASCII | 5 | |
| adchuthan | Finding Flags | 2 | |
| Nuddl_Suppe | Hex | 5 | |
| ShedoZmb | Network Attacks | 5 | |
| oongyi | Hex | 5 | |
| grazkaa | MDFlag | 125 | |
| sanny | Deriving Symmetric Keys | 40 | |
| Nuddl_Suppe | ASCII | 5 | |
| Bridgette | Bean Counter | 60 | |
| Bridgette | Symmetry | 50 | |
| sanny | Computing Shared Secrets | 30 | |
| Bridgette | Flipping Cookie | 60 | |
| Bridgette | ECB CBC WTF | 55 | |
| Momomomo0625 | XOR Starter | 10 | |
| yideng | You either know, XOR you don't | 30 | |
| Bridgette | ECB Oracle | 60 | |
| tanacrypt | Great Snakes | 3 | |
| backpack | Bytes and Big Integers | 10 | |
| giardinodecorati | Modular Square Root | 35 | |
| yideng | Favourite byte | 20 | |
| sanny | Computing Public Values | 25 | |
| Bridgette | Passwords as Keys | 50 | |
| oongyi | ASCII | 5 | |
| Tsukimakura | Modular Inverting | 25 | |
| Bridgette | Modes of Operation Starter | 15 | |
| ch_sanan | Modular Arithmetic 2 | 20 | |
| ShedoZmb | Legendre Symbol | 35 | |
| tanacrypt | Finding Flags | 2 | |
| MagicLP11 | Modular Binomials | 80 | |
| g1336 | RSA Decryption | 20 | |
| giardinodecorati | Legendre Symbol | 35 |
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