| Date | User | Challenge | Score |
| sarthak007 | Finding Flags | 2 | |
| neru | Modular Arithmetic 1 | 20 | |
| mechadoodle123 | Modular Square Root | 35 | |
| Ezzeddine | Great Snakes | 3 | |
| lauretti | Bringing It All Together | 50 | |
| NMH_Asin | One Round Crypto (ECSC 2024 (Italy)) | 0 | |
| Ezzeddine | Finding Flags | 2 | |
| NMH_Asin | Quo vadis? (ECSC 2024 (Italy)) | 0 | |
| sokpheng001 | Base64 | 10 | |
| rubber_duck | Background Reading | 5 | |
| bjwtaylor | Efficient Exchange | 50 | |
| wawira | You either know, XOR you don't | 30 | |
| NMH_Asin | Ticket Maestro (CryptoHack) | 0 | |
| NMH_Asin | Hamiltonicity (CryptoHack) | 0 | |
| sokpheng001 | Hex | 5 | |
| NMH_Asin | Additional problems (CSC Belgium) | 0 | |
| sokpheng001 | ASCII | 5 | |
| xzzmor | Modular Square Root | 35 | |
| LJMT | Base64 | 10 | |
| sokpheng001 | Great Snakes | 3 | |
| Tactical_Nerd | Fast Primes | 75 | |
| wawira | Favourite byte | 20 | |
| YouDecide | Factoring | 15 | |
| sokpheng001 | Finding Flags | 2 | |
| wawira | XOR Properties | 15 | |
| NMH_Asin | Fischlin's Transformation (CryptoHack) | 0 | |
| traktor | Successive Powers | 60 | |
| YouDecide | RSA Signatures | 25 | |
| MinhTL7 | Great Snakes | 3 | |
| lauretti | Transparency | 50 | |
| MinhTL7 | Finding Flags | 2 | |
| dish | Bytes and Big Integers | 10 | |
| 2q8268268238 | Do you have good eyes? (Breizh CTF) | 0 | |
| wawira | XOR Starter | 10 | |
| dish | Base64 | 10 | |
| Kabuto_Wiz | Modular Inverting | 25 | |
| Deadlocks8888 | Saying Hello | 20 | |
| dish | Hex | 5 | |
| genuinebasilnt | Hex | 5 | |
| wawira | Bytes and Big Integers | 10 | |
| genuinebasilnt | ASCII | 5 | |
| Deadlocks8888 | TLS Handshake | 15 | |
| whoiswhois | Bruce Schneier's Password | 100 | |
| genuinebasilnt | Great Snakes | 3 | |
| dish | ASCII | 5 | |
| genuinebasilnt | Finding Flags | 2 | |
| jonnytang | ECB CBC WTF | 55 | |
| MaHaiyan | Computing Shared Secrets | 30 | |
| dish | Network Attacks | 5 | |
| Tactical_Nerd | Ron was Wrong, Whit is Right | 90 |
You are now level Current level