| Date | User | Challenge | Score |
| charlesyueteeap | Additive | 70 | |
| Manufra | Base64 | 10 | |
| Manufra | Hex | 5 | |
| EchiZero | Bytes and Big Integers | 10 | |
| Manufra | ASCII | 5 | |
| Rerr | Base64 | 10 | |
| EchiZero | Base64 | 10 | |
| EchiZero | Hex | 5 | |
| b1b00www | Jack's Birthday Hash | 20 | |
| lapa | Symmetry | 50 | |
| borjannn | XOR Properties | 15 | |
| UnknownUser12 | Finding Flags | 2 | |
| Manufra | Great Snakes | 3 | |
| Anubhav | Bytes and Big Integers | 10 | |
| Manufra | Finding Flags | 2 | |
| bl4ckw1n3 | ASCII | 5 | |
| Rerr | Hex | 5 | |
| KolHost | Hex | 5 | |
| agentjlrmt | Digestive | 60 | |
| borjannn | XOR Starter | 10 | |
| SKotea | Greatest Common Divisor | 15 | |
| KolHost | ASCII | 5 | |
| bl4ckw1n3 | Great Snakes | 3 | |
| KolHost | Great Snakes | 3 | |
| bl4ckw1n3 | Finding Flags | 2 | |
| KolHost | Finding Flags | 2 | |
| whitecat111 | Chinese Remainder Theorem | 40 | |
| borjannn | Bytes and Big Integers | 10 | |
| Anubhav | Base64 | 10 | |
| abcdefghijklmno | Legendre Symbol | 35 | |
| borjannn | Base64 | 10 | |
| borjannn | Hex | 5 | |
| Anubhav | Hex | 5 | |
| borjannn | ASCII | 5 | |
| yowsevanz | Extended GCD | 20 | |
| skiller3478 | Edwards Goes Degenerate | 100 | |
| borjannn | Great Snakes | 3 | |
| Anubhav | ASCII | 5 | |
| Sumikko | Finding Flags | 2 | |
| borjannn | Finding Flags | 2 | |
| kurumi_11 | Public Keys | 15 | |
| RlyehSeeker | You either know, XOR you don't | 30 | |
| tmthbghd | Base64 | 10 | |
| Tanu | Finding Flags | 2 | |
| kurumi_11 | Modular Exponentiation | 10 | |
| Anubhav | Great Snakes | 3 | |
| charlesyueteeap | Static Client 2 | 120 | |
| Anubhav | Finding Flags | 2 | |
| tmthbghd | Hex | 5 | |
| charlesyueteeap | Export-grade | 100 |
You are now level Current level