| Date | User | Challenge | Score |
| Islam111 | Deriving Symmetric Keys | 40 | |
| Asema | Finding Flags | 2 | |
| ABalobanov | Quadratic Residues | 25 | |
| Rohankhatwani | Base64 | 10 | |
| Rohankhatwani | Hex | 5 | |
| ABalobanov | Modular Inverting | 25 | |
| feynhat | Factoring | 15 | |
| ABalobanov | Modular Arithmetic 2 | 20 | |
| Rohankhatwani | ASCII | 5 | |
| ABalobanov | Modular Arithmetic 1 | 20 | |
| Rohankhatwani | Great Snakes | 3 | |
| Blunt4th | You either know, XOR you don't | 30 | |
| ABalobanov | Extended GCD | 20 | |
| Chandanahy | Modular Inverting | 25 | |
| Rohankhatwani | Finding Flags | 2 | |
| Chandanahy | Modular Arithmetic 2 | 20 | |
| Islam111 | Computing Shared Secrets | 30 | |
| looserussn03 | Finding Flags | 2 | |
| IbrahimALQ | Network Attacks | 5 | |
| mm302 | Stream of Consciousness | 80 | |
| Jaxa | Chinese Remainder Theorem | 40 | |
| Ziyad_RT | Network Attacks | 5 | |
| ABalobanov | Greatest Common Divisor | 15 | |
| turekkerem | Lack of Entropy (Firebird Internal CTF) | 0 | |
| Islam111 | Computing Public Values | 25 | |
| witi93 | Quadratic Residues | 25 | |
| nullbyte0x00 | Euler's Totient | 20 | |
| Medjed | Keyed Permutations | 5 | |
| colloqialusernam | You either know, XOR you don't | 30 | |
| turekkerem | Share (HITCON CTF) | 0 | |
| Blunt4th | Favourite byte | 20 | |
| HoangNhoo | Confusion through Substitution | 25 | |
| konmr | Broken RSA | 100 | |
| Kagetasu | Greatest Common Divisor | 15 | |
| Islam111 | Generators of Groups | 20 | |
| cloverpass | Quadratic Residues | 25 | |
| Spockz | Finding Flags | 2 | |
| colloqialusernam | Favourite byte | 20 | |
| ABalobanov | Favourite byte | 20 | |
| Blunt4th | XOR Properties | 15 | |
| colloqialusernam | XOR Properties | 15 | |
| m1_ | Finding Flags | 2 | |
| nikitv | You either know, XOR you don't | 30 | |
| UGOTTHEBIGL | Curveball | 100 | |
| Pabloworkeryappi | Modular Arithmetic 2 | 20 | |
| ATTLAS | Structure of AES | 15 | |
| nikitv | Favourite byte | 20 | |
| JawadAl_hadad | Fast Primes | 75 | |
| JawadAl_hadad | Marin's Secrets | 50 | |
| JawadAl_hadad | Infinite Descent | 50 |
You are now level Current level