| Date | User | Challenge | Score |
| AmtrakGuy2 | Edwards Goes Degenerate | 100 | |
| achmakris | Network Attacks | 5 | |
| 594859 | Vectors | 10 | |
| adanaboshnde | Modular Inverting | 25 | |
| Pixolotl16 | You either know, XOR you don't | 30 | |
| yaraaby | Base64 | 10 | |
| AmtrakGuy2 | Double and Broken | 50 | |
| adanaboshnde | Modular Arithmetic 2 | 20 | |
| adanaboshnde | Modular Arithmetic 1 | 20 | |
| yaraaby | Hex | 5 | |
| adanaboshnde | Extended GCD | 20 | |
| 594859 | Token Appreciation | 5 | |
| bertholdus | Bytes and Big Integers | 10 | |
| ThomD | Confusion through Substitution | 25 | |
| zgc856 | Hex | 5 | |
| 594859 | Jack's Birthday Confusion | 30 | |
| m0ns7er | Toshi's Treasure | 150 | |
| zgc856 | ASCII | 5 | |
| yaraaby | ASCII | 5 | |
| EdgarSosa | ASCII | 5 | |
| Pixolotl16 | Favourite byte | 20 | |
| Pixolotl16 | XOR Properties | 15 | |
| ThomD | Round Keys | 20 | |
| Beef_Steroids | ZKP Introduction | 5 | |
| yaraaby | Great Snakes | 3 | |
| EdgarSosa | Finding Flags | 2 | |
| Nathanbassick | Vectors | 10 | |
| zgc856 | Great Snakes | 3 | |
| Nathanbassick | Token Appreciation | 5 | |
| Beef_Steroids | Vectors | 10 | |
| zgc856 | Finding Flags | 2 | |
| Beef_Steroids | Token Appreciation | 5 | |
| NoamFridman | Parameter Injection | 60 | |
| Nathanbassick | Background Reading | 5 | |
| Beef_Steroids | Background Reading | 5 | |
| Pixolotl16 | XOR Starter | 10 | |
| Beef_Steroids | Working with Fields | 10 | |
| periklis | Secure Protocols | 5 | |
| Kabha | Modular Arithmetic 2 | 20 | |
| Nathanbassick | Working with Fields | 10 | |
| x3ric | Smithing contest (ECSC 2024 (Italy)) | 0 | |
| Beef_Steroids | Modular Exponentiation | 10 | |
| Nathanbassick | Modular Exponentiation | 10 | |
| Kabha | Modular Inverting | 25 | |
| Nathanbassick | Quadratic Residues | 25 | |
| 594859 | Background Reading | 5 | |
| Beef_Steroids | Quadratic Residues | 25 | |
| braveadventur | Vectors | 10 | |
| 594859 | Working with Fields | 10 | |
| Beef_Steroids | Keyed Permutations | 5 |
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