| Date | User | Challenge | Score |
| gasmer | Hex | 5 | |
| gasmer | ASCII | 5 | |
| sudden_c | You either know, XOR you don't | 30 | |
| gasmer | Great Snakes | 3 | |
| gasmer | Finding Flags | 2 | |
| DuckMaster | Bytes and Big Integers | 10 | |
| yaseen | Base64 | 10 | |
| dnl53x | Bytes and Big Integers | 10 | |
| Trocabtn | Great Snakes | 3 | |
| Trocabtn | Finding Flags | 2 | |
| ZongxiYang | Modular Arithmetic 2 | 20 | |
| heeheeheehar | Mister Saplin's Preview | 80 | |
| 0Luna0 | Public Keys | 15 | |
| vic1208 | Smooth Criminal | 60 | |
| yaseen | Hex | 5 | |
| kapitano | You either know, XOR you don't | 30 | |
| koreaunivap | Proofs of Knowledge | 20 | |
| mr265 | Jack's Birthday Hash | 20 | |
| yaseen | ASCII | 5 | |
| Lunetar | Quadratic Residues | 25 | |
| 0Luna0 | Modular Exponentiation | 10 | |
| DuckMaster | Base64 | 10 | |
| yaseen | Great Snakes | 3 | |
| ZongxiYang | Modular Arithmetic 1 | 20 | |
| forestaro | ASCII | 5 | |
| yaseen | Finding Flags | 2 | |
| forestaro | Great Snakes | 3 | |
| molator | Modular Arithmetic 2 | 20 | |
| ZongxiYang | Extended GCD | 20 | |
| T3ach | XOR Starter | 10 | |
| otmama223 | Hex | 5 | |
| vic1208 | Efficient Exchange | 50 | |
| molator | Modular Arithmetic 1 | 20 | |
| forestaro | Finding Flags | 2 | |
| heeheeheehar | Couples | 100 | |
| otmama223 | ASCII | 5 | |
| sydd | Bytes and Big Integers | 10 | |
| Ilekys | Great Snakes | 3 | |
| sydd | Base64 | 10 | |
| sydd | Hex | 5 | |
| DuckMaster | Hex | 5 | |
| sydd | ASCII | 5 | |
| vic1208 | Curves and Logs | 40 | |
| Ilekys | Finding Flags | 2 | |
| Lunetar | Modular Inverting | 25 | |
| otmama223 | Great Snakes | 3 | |
| T3ach | Encoding Challenge | 40 | |
| koreaunivap | ZKP Introduction | 5 | |
| ZongxiYang | Greatest Common Divisor | 15 | |
| heeheeheehar | Let's Prove It | 120 |
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