| Date | User | Challenge | Score |
| xomting | Bytes and Big Integers | 10 | |
| PibRe | Finding Flags | 2 | |
| lalo404 | Adrien's Signs | 80 | |
| xomting | Base64 | 10 | |
| ltwind_v2 | An Exceptional Twisted Mind | 125 | |
| bpaul | Real Eisenstein | 150 | |
| nous | SpongeBob SquarePants / Battle for Bikini Bottom - Rehydrated (HTB Cyber Apocalypse) | 0 | |
| Kanad3 | Symmetry | 50 | |
| anhdoo1004 | Favourite byte | 20 | |
| exoq | Deriving Symmetric Keys | 40 | |
| anhdoo1004 | XOR Properties | 15 | |
| xomting | Hex | 5 | |
| DavidTruong | Non-Interactive | 35 | |
| xomting | ASCII | 5 | |
| exoq | Computing Shared Secrets | 30 | |
| sawol | Greatest Common Divisor | 15 | |
| Jezler12 | Finding Flags | 2 | |
| wonderhoi | Modular Exponentiation | 10 | |
| dolphinhack | Finding Flags | 2 | |
| wonderhoi | Keyed Permutations | 5 | |
| anhdoo1004 | XOR Starter | 10 | |
| anhdoo1004 | Bytes and Big Integers | 10 | |
| exoq | Computing Public Values | 25 | |
| anhdoo1004 | Base64 | 10 | |
| yuzu | Modular Arithmetic 2 | 20 | |
| xomting | Great Snakes | 3 | |
| anhdoo1004 | Hex | 5 | |
| anhdoo1004 | ASCII | 5 | |
| xomting | Finding Flags | 2 | |
| anhdoo1004 | Great Snakes | 3 | |
| anhdoo1004 | Finding Flags | 2 | |
| akow23 | Base64 | 10 | |
| akow23 | Hex | 5 | |
| DavidTruong | Honest Verifier Zero Knowledge | 30 | |
| Leo_cabral7 | Hex | 5 | |
| pypy | Logon Zero | 80 | |
| Leo_cabral7 | ASCII | 5 | |
| hariram_19 | Finding Flags | 2 | |
| yuzu | Modular Arithmetic 1 | 20 | |
| Menshikii | Bytes and Big Integers | 10 | |
| r1diq | Base64 | 10 | |
| akow23 | ASCII | 5 | |
| Leo_cabral7 | Great Snakes | 3 | |
| Menshikii | Base64 | 10 | |
| mboh2 | Round Keys | 20 | |
| Leo_cabral7 | Finding Flags | 2 | |
| akow23 | Great Snakes | 3 | |
| Hiiamming | Bounded Noise | 50 | |
| akow23 | Finding Flags | 2 | |
| Amet | Quadratic Residues | 25 |
You are now level Current level