| # | Challenge | Category | Author | Solved | Score |
|---|---|---|---|---|---|
| 1 | Cryptography | unknown | 51 | 10 | |
| 2 | Cryptography | unknown | 73 | 10 | |
| 3 | Cryptography | unknown | 86 | 10 | |
| 4 | Cryptography | unknown | 99 | 10 | |
| 5 | Cryptography | unknown | 101 | 10 | |
| 6 | Cryptography | unknown | 119 | 10 | |
| 7 | Cryptography | unknown | 148 | 10 | |
| 8 | Cryptography | unknown | 168 | 10 | |
| 9 | Cryptography | unknown | 210 | 10 | |
| 10 | Cryptography | unknown | 216 | 10 | |
| 11 | Cryptography | unknown | 227 | 10 | |
| 12 | Cryptography | unknown | 239 | 10 | |
| 13 | Cryptography | unknown | 261 | 10 |