| Date | User | Challenge | Score |
| tsekunee | Bytes and Big Integers | 10 | |
| xaliunaa | XOR Starter | 10 | |
| kiing | ASCII | 5 | |
| crisis82 | What's a Lattice? | 40 | |
| tsekunee | Base64 | 10 | |
| xaliunaa | Bytes and Big Integers | 10 | |
| Anujin | Hex | 5 | |
| xaliunaa | Base64 | 10 | |
| Khaliun | Favourite byte | 20 | |
| allowu | XOR Properties | 15 | |
| _emmakaranja | You either know, XOR you don't | 30 | |
| Skarn | Deriving Symmetric Keys | 40 | |
| chinee | Hex | 5 | |
| _emmakaranja | Favourite byte | 20 | |
| Pandao | Base64 | 10 | |
| Khaliun | XOR Properties | 15 | |
| _emmakaranja | XOR Properties | 15 | |
| __incog__ | JSON in JSON | 40 | |
| _emmakaranja | XOR Starter | 10 | |
| xaliunaa | Hex | 5 | |
| munkhjin | Base64 | 10 | |
| xaliunaa | ASCII | 5 | |
| Khaliun | XOR Starter | 10 | |
| Pandao | Hex | 5 | |
| Flacko | Great Snakes | 3 | |
| _emmakaranja | Bytes and Big Integers | 10 | |
| Khaliun | Bytes and Big Integers | 10 | |
| Skarn | Computing Shared Secrets | 30 | |
| EkoOkami | Finding Flags | 2 | |
| _emmakaranja | Base64 | 10 | |
| tsekunee | Hex | 5 | |
| Anujin | ASCII | 5 | |
| chinee | ASCII | 5 | |
| JackOfBits | Greatest Common Divisor | 15 | |
| SeifAhmed | A Twisted Mind | 80 | |
| Skarn | Computing Public Values | 25 | |
| Khaliun | Base64 | 10 | |
| _emmakaranja | Hex | 5 | |
| Deependra | Finding Flags | 2 | |
| Skarn | Generators of Groups | 20 | |
| Khaliun | Hex | 5 | |
| _emmakaranja | ASCII | 5 | |
| munkhjin | Hex | 5 | |
| SypherZ | Point Negation | 10 | |
| xaliunaa | Great Snakes | 3 | |
| JackOfBits | You either know, XOR you don't | 30 | |
| Pandao | ASCII | 5 | |
| _emmakaranja | Great Snakes | 3 | |
| TheRealDude | Base64 | 10 | |
| munkhjin | ASCII | 5 |
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