LUP1N
Solves
| Challenge | Category | Value | Time |
| I am Samuel Morse! | Cryptography | 100 | |
| I am Samuel Morse 2! | Cryptography | 200 | |
| Year 1993 by Urban Müller | Cryptography | 300 | |
| Forensics Warm Up 2 | Forensics | 50 | |
| File Signature | Forensics | 20 | |
| Shark Of Wire | Forensics | 20 | |
| Julius Caesar | Cryptography | 100 | |
| Stegnography 2 | Steganography | 150 | |
| Stegnography 3 | Steganography | 200 | |
| Linux Tutorial 1 | Linux | 20 | |
| Linux Tutorial 2 | Linux | 20 | |
| Linux Tutorial 3 | None | 20 | |
| Linux Tutorial 4 | None | 20 | |
| Hex To ASCII | Mini Game | 100 | |
| The game of NIM | Mini Game | 20 | |
| Net Cat | Warm Up | 20 | |
| Schrödinger's Cat | Miscellaneous | 20 | |
| Happy CNY! | Miscellaneous | 20 | |
| Secret Message | Miscellaneous | 20 | |
| Quick Survey | Warm Up | 400 | |
| Beware of SHA1rk | Cryptography | 20 | |
| Calculator | Miscellaneous | 20 |