| Date | User | Challenge | Score |
| numberFreak | No Way JOSE | 20 | |
| trous | Network Attacks | 5 | |
| Fedyl | Greatest Common Divisor | 15 | |
| maousi | Flipping Cookie | 60 | |
| Magnivul | Finding Flags | 2 | |
| tranchaungoctri | Finding Flags | 2 | |
| numberFreak | JWT Sessions | 10 | |
| Fedyl | Hex | 5 | |
| Fedyl | ASCII | 5 | |
| Fedyl | Great Snakes | 3 | |
| Fedyl | Finding Flags | 2 | |
| 00Darxk | Transparency | 50 | |
| numberFreak | Token Appreciation | 5 | |
| 00Darxk | SSH Keys | 35 | |
| Mihafil746 | Elliptic Nodes | 150 | |
| 00Darxk | CERTainly not | 30 | |
| wizard101 | Favourite byte | 20 | |
| GalaxyPrimal | Hex | 5 | |
| 00Darxk | Privacy-Enhanced Mail? | 25 | |
| anci3ntR3port | Resisting Bruteforce | 10 | |
| anci3ntR3port | Keyed Permutations | 5 | |
| wizard101 | XOR Properties | 15 | |
| anci3ntR3port | Modular Inverting | 25 | |
| 00Darxk | Modular Inverting | 25 | |
| 00Darxk | Modular Arithmetic 2 | 20 | |
| 00Darxk | Modular Arithmetic 1 | 20 | |
| anci3ntR3port | Modular Arithmetic 2 | 20 | |
| 00Darxk | Extended GCD | 20 | |
| 00Darxk | Greatest Common Divisor | 15 | |
| 00Darxk | Lemur XOR | 40 | |
| 00Darxk | You either know, XOR you don't | 30 | |
| shieldsmaiden | ASCII | 5 | |
| anci3ntR3port | Modular Arithmetic 1 | 20 | |
| GalaxyPrimal | ASCII | 5 | |
| 00Darxk | Favourite byte | 20 | |
| shieldsmaiden | Great Snakes | 3 | |
| shieldsmaiden | Finding Flags | 2 | |
| 00Darxk | XOR Properties | 15 | |
| 00Darxk | XOR Starter | 10 | |
| 00Darxk | Encoding Challenge | 40 | |
| anci3ntR3port | Extended GCD | 20 | |
| LigiaMR | Finding Flags | 2 | |
| axelskirt | Base64 | 10 | |
| anci3ntR3port | Greatest Common Divisor | 15 | |
| axelskirt | Hex | 5 | |
| 00Darxk | Bytes and Big Integers | 10 | |
| 00Darxk | Base64 | 10 | |
| huber | Base64 | 10 | |
| 00Darxk | Hex | 5 | |
| 00Darxk | ASCII | 5 |
You are now level Current level