| Date | User | Challenge | Score |
| dbarania | SSH Keys | 35 | |
| kokocrypto | Base64 | 10 | |
| cr7ptic | ASCII | 5 | |
| kuidas_kui | XOR Properties | 15 | |
| int80 | Generators of Groups | 20 | |
| NotDeadPotato | Greatest Common Divisor | 15 | |
| krizz1337 | Lemur XOR | 40 | |
| cellesstine | XOR Starter | 10 | |
| dbarania | CERTainly not | 30 | |
| mponompos | ASCII | 5 | |
| Alpha0606 | Finding Flags | 2 | |
| Be_Ria1 | Computing Shared Secrets | 30 | |
| krizz1337 | Privacy-Enhanced Mail? | 25 | |
| ShadowHNTR | Finding Flags | 2 | |
| DownOnEarth | Base64 | 10 | |
| AjinkyaTup | Base64 | 10 | |
| ChMi | Keyed Permutations | 5 | |
| White19 | Introduction to Isogenies | 10 | |
| AjinkyaTup | Hex | 5 | |
| AjinkyaTup | ASCII | 5 | |
| mponompos | Great Snakes | 3 | |
| cellesstine | Bytes and Big Integers | 10 | |
| NotDeadPotato | Great Snakes | 3 | |
| AjinkyaTup | Great Snakes | 3 | |
| DownOnEarth | Hex | 5 | |
| cr7ptic | Great Snakes | 3 | |
| MadRat_0 | Rhetorical Oracle 2 | 150 | |
| AjinkyaTup | Finding Flags | 2 | |
| Be_Ria1 | Computing Public Values | 25 | |
| cr7ptic | Finding Flags | 2 | |
| Luhj_18 | Finding Flags | 2 | |
| int80 | Working with Fields | 10 | |
| mathlegochess | ASCII | 5 | |
| Zephorzzz | Network Attacks | 5 | |
| mathlegochess | Great Snakes | 3 | |
| DownOnEarth | ASCII | 5 | |
| Rigobertoncio | Smooth Criminal | 60 | |
| NotDeadPotato | Hex | 5 | |
| daikon_dd | Resisting Bruteforce | 10 | |
| DownOnEarth | Great Snakes | 3 | |
| NotDeadPotato | ASCII | 5 | |
| kai2006 | Lo-Hi Card Game | 120 | |
| kenchen | Base64 | 10 | |
| phomai739391 | No Way Back Home | 100 | |
| kenchen | Hex | 5 | |
| daikon_dd | Keyed Permutations | 5 | |
| Mahi_26 | Transparency | 50 | |
| NotDeadPotato | Finding Flags | 2 | |
| int80 | Marin's Secrets | 50 | |
| Mahi_26 | Manyprime | 40 |
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