| Date | User | Challenge | Score |
| karasec | Bytes and Big Integers | 10 | |
| qwra | Fast Primes | 75 | |
| CrimsonDuck | Factoring | 15 | |
| Muthaiah | Logon Zero | 80 | |
| Xukia | Modular Arithmetic 2 | 20 | |
| NguyenNK | LWE High Bits Message | 15 | |
| hakka52 | Blinding Light | 120 | |
| grazkaa | Smooth Criminal | 60 | |
| BiiBao | Greatest Common Divisor | 15 | |
| kingofburger | ASCII | 5 | |
| shyhat | Public Keys | 15 | |
| kingofburger | Great Snakes | 3 | |
| Kyle_0215 | Moving Problems | 150 | |
| zaidanhextt | Private Keys | 20 | |
| SiYouan | Roll your Own | 125 | |
| kingofburger | Finding Flags | 2 | |
| zaidanhextt | Euler's Totient | 20 | |
| vladraft | Finding Flags | 2 | |
| zaidanhextt | Public Keys | 15 | |
| zaidanhextt | Modular Exponentiation | 10 | |
| zaidanhextt | Network Attacks | 5 | |
| shyhat | Modular Exponentiation | 10 | |
| karasec | Base64 | 10 | |
| karasec | Hex | 5 | |
| zaidanhextt | Great Snakes | 3 | |
| Sovann7 | Finding Flags | 2 | |
| zaidanhextt | Finding Flags | 2 | |
| karasec | ASCII | 5 | |
| hakka52 | Let's Decrypt | 80 | |
| karasec | Great Snakes | 3 | |
| karasec | Finding Flags | 2 | |
| diffelapi | Jack's Birthday Hash | 20 | |
| Darkreunion | Hex | 5 | |
| Darkreunion | ASCII | 5 | |
| Darkreunion | Network Attacks | 5 | |
| Darkreunion | Great Snakes | 3 | |
| SiYouan | Ellipse Curve Cryptography | 125 | |
| dhanush_kudva | Base64 | 10 | |
| betterbea | Adrien's Signs | 80 | |
| qwra | Marin's Secrets | 50 | |
| void12 | Base64 | 10 | |
| qwra | Infinite Descent | 50 | |
| dhanush_kudva | Hex | 5 | |
| hakka52 | Signing Server | 60 | |
| CrazyFoX | XOR Starter | 10 | |
| dhanush_kudva | ASCII | 5 | |
| HAITHAM | Finding Flags | 2 | |
| dhanush_kudva | Great Snakes | 3 | |
| NguyenNK | Keyed Permutations | 5 | |
| dhanush_kudva | Finding Flags | 2 |
You are now level Current level