| Date | User | Challenge | Score |
| untamed | Finding Flags | 2 | |
| Mujeeb_U_Rehman | Greatest Common Divisor | 15 | |
| whoiswhois | Key Backup Service 1 (HKCERT CTF) | 0 | |
| caledt | Modular Binomials | 80 | |
| Merci_b | Endless Emails | 150 | |
| Lord_Ping | Greatest Common Divisor | 15 | |
| gamesatosi | Finding Flags | 2 | |
| see0 | Generators of Groups | 20 | |
| JhonFarel | Great Snakes | 3 | |
| anon2k26 | XOR Properties | 15 | |
| ortikov | XOR Starter | 10 | |
| sasytaco802 | The Matrix Reloaded | 100 | |
| whoiswhois | pekobot (AIS3 Pre-Exam) | 0 | |
| ortikov | Bytes and Big Integers | 10 | |
| ortikov | Base64 | 10 | |
| see0 | Working with Fields | 10 | |
| ortikov | Hex | 5 | |
| ortikov | ASCII | 5 | |
| see0 | Modulus Inutilis | 50 | |
| ortikov | Great Snakes | 3 | |
| ortikov | Finding Flags | 2 | |
| dynamicg33k | Base64 | 10 | |
| hopelessFantast | Modular Inverting | 25 | |
| yumorie | Modular Inverting | 25 | |
| dynamicg33k | Hex | 5 | |
| hopelessFantast | Modular Arithmetic 2 | 20 | |
| vivisect0r | Parameter Injection | 60 | |
| yumorie | Modular Arithmetic 2 | 20 | |
| pkhienko | Modular Inverting | 25 | |
| dynamicg33k | ASCII | 5 | |
| nichi01 | Finding Flags | 2 | |
| yumorie | Modular Arithmetic 1 | 20 | |
| hopelessFantast | Modular Arithmetic 1 | 20 | |
| personjs | Noise Free | 40 | |
| yumorie | Extended GCD | 20 | |
| hopelessFantast | Extended GCD | 20 | |
| pkhienko | Modular Arithmetic 2 | 20 | |
| hopelessFantast | Greatest Common Divisor | 15 | |
| retne | Resisting Bruteforce | 10 | |
| hibwyli | Extended GCD | 20 | |
| arun_ks | Keyed Permutations | 5 | |
| retne | Keyed Permutations | 5 | |
| pkhienko | Modular Arithmetic 1 | 20 | |
| bookfan | Bespoke Padding | 100 | |
| pkhienko | Extended GCD | 20 | |
| kabbya | Favourite byte | 20 | |
| see0 | Salty | 20 | |
| dominicq | Favourite byte | 20 | |
| hibwyli | Greatest Common Divisor | 15 | |
| kabbya | XOR Properties | 15 |
You are now level Current level