| Date | User | Challenge | Score |
| Alfy_rs | XOR Properties | 15 | |
| Alfy_rs | XOR Starter | 10 | |
| Alfy_rs | Bytes and Big Integers | 10 | |
| Alfy_rs | Base64 | 10 | |
| Alfy_rs | Hex | 5 | |
| Alfy_rs | ASCII | 5 | |
| Alfy_rs | Great Snakes | 3 | |
| Alfy_rs | Finding Flags | 2 | |
| SnBork | CERTainly not | 30 | |
| Mohamed_Sameer_B | Quadratic Residues | 25 | |
| Mohamed_Sameer_B | Chinese Remainder Theorem | 40 | |
| SnBork | Privacy-Enhanced Mail? | 25 | |
| Kanishkaa | Modular Exponentiation | 10 | |
| Nithi | Bytes and Big Integers | 10 | |
| Nithi | XOR Properties | 15 | |
| Mohamed_Sameer_B | XOR Properties | 15 | |
| azyro | Base64 | 10 | |
| Mohamed_Sameer_B | XOR Starter | 10 | |
| Mohamed_Sameer_B | Modular Inverting | 25 | |
| Mohamed_Sameer_B | Modular Arithmetic 2 | 20 | |
| Mohamed_Sameer_B | Modular Arithmetic 1 | 20 | |
| Mohamed_Sameer_B | Extended GCD | 20 | |
| _hdh | Modular Arithmetic 1 | 20 | |
| Nithi | XOR Starter | 10 | |
| Mohamed_Sameer_B | Greatest Common Divisor | 15 | |
| azyro | Hex | 5 | |
| Mohamed_Sameer_B | Bytes and Big Integers | 10 | |
| Mohamed_Sameer_B | Base64 | 10 | |
| Mohamed_Sameer_B | Hex | 5 | |
| Mohamed_Sameer_B | ASCII | 5 | |
| azyro | ASCII | 5 | |
| ZiggyNorton | ASCII | 5 | |
| azyro | Great Snakes | 3 | |
| ZiggyNorton | Great Snakes | 3 | |
| ZiggyNorton | Finding Flags | 2 | |
| NeverIsHear | Base64 | 10 | |
| azyro | Finding Flags | 2 | |
| NeverIsHear | Hex | 5 | |
| SnBork | Modular Inverting | 25 | |
| SnBork | Modular Arithmetic 2 | 20 | |
| mvsh | Resisting Bruteforce | 10 | |
| mvsh | Keyed Permutations | 5 | |
| mvsh | Jack's Birthday Confusion | 30 | |
| pypy | Favourite byte | 20 | |
| SnBork | Modular Arithmetic 1 | 20 | |
| pypy | XOR Properties | 15 | |
| mvsh | Jack's Birthday Hash | 20 | |
| Remb | XOR Starter | 10 | |
| 0xs1nr | Logon Zero | 80 | |
| mvsh | XOR Properties | 15 |
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