| # | Challenge | Category | Author | Solved | Score |
|---|---|---|---|---|---|
| 1 | Cryptography | unknown | 48 | 10 | |
| 2 | Cryptography | unknown | 66 | 10 | |
| 3 | Cryptography | unknown | 76 | 10 | |
| 4 | Cryptography | unknown | 89 | 10 | |
| 5 | Cryptography | unknown | 92 | 10 | |
| 6 | Cryptography | unknown | 109 | 10 | |
| 7 | Cryptography | unknown | 131 | 10 | |
| 8 | Cryptography | unknown | 152 | 10 | |
| 9 | Cryptography | unknown | 189 | 10 | |
| 10 | Cryptography | unknown | 193 | 10 | |
| 11 | Cryptography | unknown | 203 | 10 | |
| 12 | Cryptography | unknown | 209 | 10 | |
| 13 | Cryptography | unknown | 232 | 10 |