| Date | User | Challenge | Score |
| KietwhUIT | The Matrix Revolutions | 125 | |
| ayilmaz08 | Private Keys | 20 | |
| Peer | XOR Properties | 15 | |
| OD1Nn00b | Hex | 5 | |
| ayilmaz08 | Euler's Totient | 20 | |
| OD1Nn00b | ASCII | 5 | |
| ENRIC46 | Modular Inverting | 25 | |
| OD1Nn00b | Great Snakes | 3 | |
| ayilmaz08 | Public Keys | 15 | |
| Tekq14 | Bean Counter | 60 | |
| OD1Nn00b | Finding Flags | 2 | |
| dodybaks | Base64 | 10 | |
| ilyastarcek | Resisting Bruteforce | 10 | |
| dodybaks | Hex | 5 | |
| ilyastarcek | Keyed Permutations | 5 | |
| Peer | XOR Starter | 10 | |
| ilyastarcek | Transparency | 50 | |
| dodybaks | ASCII | 5 | |
| ayilmaz08 | Modular Exponentiation | 10 | |
| acidlog | Confusion through Substitution | 25 | |
| dodybaks | Great Snakes | 3 | |
| Tekq14 | Symmetry | 50 | |
| ilyastarcek | SSH Keys | 35 | |
| qthang | A Twisted Mind | 80 | |
| Peer | Bytes and Big Integers | 10 | |
| ilyastarcek | CERTainly not | 30 | |
| dodybaks | Finding Flags | 2 | |
| Peer | Base64 | 10 | |
| wgao4000 | Jack's Birthday Confusion | 30 | |
| Tekq14 | Flipping Cookie | 60 | |
| Peer | Hex | 5 | |
| ilyastarcek | Privacy-Enhanced Mail? | 25 | |
| wgao4000 | Jack's Birthday Hash | 20 | |
| RomaOlef | Armory | 100 | |
| Peer | ASCII | 5 | |
| wgao4000 | Parameter Injection | 60 | |
| Peer | Great Snakes | 3 | |
| Peer | Finding Flags | 2 | |
| xth_student | Background Reading | 5 | |
| Your_Fan | Legendre Symbol | 35 | |
| thaggs1066 | Unencryptable | 125 | |
| votranngocvy | Static Client 2 | 120 | |
| KietwhUIT | The Matrix | 75 | |
| AceNk | Background Reading | 5 | |
| MeowSonic | Blinding Light | 120 | |
| spy003 | Modular Binomials | 80 | |
| stpt | Pad Thai | 80 | |
| KietwhUIT | Script Kiddie | 70 | |
| ENRIC46 | Modular Arithmetic 2 | 20 | |
| spek | XOR Starter | 10 |
You are now level Current level